Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).
Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.
A copolymer of polyethylene and polypropylene ether glycol. It is a non-ionic polyol surface-active agent used medically as a fecal softener and in cattle for prevention of bloat.
Used in copolymerization reactions, in the Diels-Alder(diene)synthesis, in the preparation of resins, pharmaceuticals and agricultural chemicals. It is a powerful irritant and causes burns.
A plant genus of the family MALVACEAE, order Malvales, subclass Dilleniidae best known for okra.
Colorless, odorless crystals that are used extensively in research laboratories for the preparation of polyacrylamide gels for electrophoresis and in organic synthesis, and polymerization. Some of its polymers are used in sewage and wastewater treatment, permanent press fabrics, and as soil conditioning agents.
Generating tissue in vitro for clinical applications, such as replacing wounded tissues or impaired organs. The use of TISSUE SCAFFOLDING enables the generation of complex multi-layered tissues and tissue structures.
Implants constructed of materials designed to be absorbed by the body without producing an immune response. They are usually composed of plastics and are frequently used in orthopedics and orthodontics.
Cell growth support structures composed of BIOCOMPATIBLE MATERIALS. They are specially designed solid support matrices for cell attachment in TISSUE ENGINEERING and GUIDED TISSUE REGENERATION uses.
Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
Forms to which substances are incorporated to improve the delivery and the effectiveness of drugs. Drug carriers are used in drug-delivery systems such as the controlled-release technology to prolong in vivo drug actions, decrease drug metabolism, and reduce drug toxicity. Carriers are also used in designs to increase the effectiveness of drug delivery to the target sites of pharmacological actions. Liposomes, albumin microspheres, soluble synthetic polymers, DNA complexes, protein-drug conjugates, and carrier erythrocytes among others have been employed as biodegradable drug carriers.
A biocompatible polymer used as a surgical suture material.
Polymers of ETHYLENE OXIDE and water, and their ethers. They vary in consistency from liquid to solid depending on the molecular weight indicated by a number following the name. They are used as SURFACTANTS, dispersing agents, solvents, ointment and suppository bases, vehicles, and tablet excipients. Some specific groups are NONOXYNOLS, OCTOXYNOLS, and POLOXAMERS.
A product formed from skin, white connective tissue, or bone COLLAGEN. It is used as a protein food adjuvant, plasma substitute, hemostatic, suspending agent in pharmaceutical preparations, and in the manufacturing of capsules and suppositories.
Characteristics or attributes of the outer boundaries of objects, including molecules.
Systems for the delivery of drugs to target sites of pharmacological actions. Technologies employed include those concerning drug preparation, route of administration, site targeting, metabolism, and toxicity.
The rate dynamics in chemical or physical systems.
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
A field of biological research combining engineering in the formulation, design, and building (synthesis) of novel biological structures, functions, and systems.
Biologically functional sequences of DNA chemically synthesized in vitro.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Polymers synthesized by living organisms. They play a role in the formation of macromolecular structures and are synthesized via the covalent linkage of biological molecules, especially AMINO ACIDS; NUCLEOTIDES; and CARBOHYDRATES.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
A methodology for chemically synthesizing polymer molds of specific molecules or recognition sites of specific molecules. Applications for molecularly imprinted polymers (MIPs) include separations, assays and biosensors, and catalysis.
Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are linear polypeptides that are normally synthesized on RIBOSOMES.
Polymers of organic acids and alcohols, with ester linkages--usually polyethylene terephthalate; can be cured into hard plastic, films or tapes, or fibers which can be woven into fabrics, meshes or velours.
The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.
Chemical reaction in which monomeric components are combined to form POLYMERS (e.g., POLYMETHYLMETHACRYLATE).
Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative.
Materials fabricated by BIOMIMETICS techniques, i.e., based on natural processes found in biological systems.
Dosage forms of a drug that act over a period of time by controlled-release processes or technology.
Polymerized forms of styrene used as a biocompatible material, especially in dentistry. They are thermoplastic and are used as insulators, for injection molding and casting, as sheets, plates, rods, rigid forms and beads.
Relating to the size of solids.
The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Strongly cationic polymer that binds to certain proteins; used as a marker in immunology, to precipitate and purify enzymes and lipids. Synonyms: aziridine polymer; Epamine; Epomine; ethylenimine polymer; Montrek; PEI; Polymin(e).
Condition of having pores or open spaces. This often refers to bones, bone implants, or bone cements, but can refer to the porous state of any solid substance.
Peptides composed of between two and twelve amino acids.
Partial proteins formed by partial hydrolysis of complete proteins or generated through PROTEIN ENGINEERING techniques.
Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.
Acrylic acids or acrylates which are substituted in the C-2 position with a methyl group.
The preparation, mixing, and assembling of a drug. (From Remington, The Science and Practice of Pharmacy, 19th ed, p1814)
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
A peptide which is a homopolymer of lysine.
The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.
Materials which have structured components with at least one dimension in the range of 1 to 100 nanometers. These include NANOCOMPOSITES; NANOPARTICLES; NANOTUBES; and NANOWIRES.
The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.
Deacetylated CHITIN, a linear polysaccharide of deacetylated beta-1,4-D-glucosamine. It is used in HYDROGEL and to treat WOUNDS.
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
Synthetic polymers[edit]. Many polymers are strengthened by hydrogen bonds within and between the chains. Among the synthetic ... The hydrogen-bond networks make both natural and synthetic polymers sensitive to humidity levels in the atmosphere because ... It also plays an important role in the structure of polymers, both synthetic and natural. ... Hydrogen bonds in polymers[edit]. Hydrogen bonding plays an important role in determining the three-dimensional structures and ...
Vs synthetic polymers[edit]. A major defining difference between biopolymers and synthetic polymers can be found in their ... In contrast, most synthetic polymers have much simpler and more random (or stochastic) structures. This fact leads to a ... Biopolymers are polymers produced by living organisms; in other words, they are polymeric biomolecules. Since they are polymers ... This phenomenon is called monodispersity in contrast to the polydispersity encountered in synthetic polymers. As a result, ...
Synthetic polymersEdit. Many polymers are strengthened by hydrogen bonds within and between the chains. Among the synthetic ... The hydrogen-bond networks make both natural and synthetic polymers sensitive to humidity levels in the atmosphere because ... It also plays an important role in the structure of polymers, both synthetic and natural. ... Some polymers are more sensitive than others. Thus nylons are more sensitive than aramids, and nylon 6 more sensitive than ...
Heated to 285 °C (545 °F), the salt reacts to form nylon polymer with the production of water. The synthetic route using ... In the spring of 1930, Carothers and his team had already synthesized two new polymers. One was neoprene, a synthetic rubber ... Nylon is a generic designation for a family of synthetic polymers composed of polyamides (repeating units linked by amide links ... Nylon polymers can be mixed with a wide variety of additives to achieve many different property variations. Nylon polymers have ...
CS1 maint: discouraged parameter (link) CS1 maint: archived copy as title (link) [2] Button Country (2010). "Synthetic Polymers ... National Button Society Section 9-A Synthetic Polymers Handbook. Nikki Deal. USA: National Button Society (USA). p. 40. " ... synthetic textiles Button collecting History of technology Seashells in personal adornment Button Country (2010). "Other ...
... s are synthetic polymers. Compounds used as superplasticizers include sulfonated naphthalene formaldehyde ... The polymers that serve as plasticizers exhibit surfactant properties. They are often ionomers. They function as dispersants to ... minimize particle segregation (gravel, coarse and fine sands). The negatively charged polymer backbone adsorbs on the ... prepared by crosslinking of the sulfonated monomers using formaldehyde or by sulfonating the corresponding crosslinked polymer ...
XNA is a synthetic polymer that can carry the same information as DNA, but with different molecular constituents. The "X" in ... Pinheiro VB, Holliger P (August 2012). "The XNA world: progress towards replication and evolution of synthetic genetic polymers ... "Synthetic genetic polymers capable of heredity and evolution". Science. 336 (6079): 341-44. Bibcode:2012Sci...336..341P. doi: ... "Synthetic genetic polymers capable of heredity and evolution". Science. 336 (6079): 341-44. Bibcode:2012Sci...336..341P. doi: ...
... director of the Institute of Synthetic polymers (Currently Nikolay Enikolopov Institute of Synthetic Polymers) of the Russian ... 2, p. 98 "History" (in Russian). Yenikolopov Institute of Synthetic Polymers. Archived from the original on 2009-06-23. ... headed the laboratory of polymers. In 1982-1993 he headed also a department at the Moscow Institute of Physics and Technology. ...
"Mass Spectrometry of Synthetic Polymers. Anal. Chem". Analytical Chemistry. 78 (12): 3957-3964. doi:10.1021/ac0606249. PMID ... polymers into monomers and oligomers ceramization involving the formation of polymer derived ceramics from preceramic polymers ... Carbon fiber items are often produced by spinning and weaving the desired item from fibers of a suitable polymer, and then ... The resulting ethylene is used to make antifreeze (ethylene glycol), PVC (via vinyl chloride), and many other polymers, such as ...
"Catalysts from synthetic genetic polymers". Nature. 518 (7539): 427-30. Bibcode:2015Natur.518..427T. doi:10.1038/nature13982. ... Malyshev DA, Dhami K, Lavergne T, Chen T, Dai N, Foster JM, Corrêa IR, Romesberg FE (May 2014). "A semi-synthetic organism with ... reported having constructed a semi-synthetic E. coli bacteria able to make proteins using such DNA. Its DNA contained six ... "A semi-synthetic organism that stores and retrieves increased genetic information". Nature. 551 (7682): 644-47. Bibcode: ...
"Mass Spectrometry of Synthetic Polymers. Anal. Chem". 78: 3957-3964. doi:10.1021/ac0606249. Cite journal requires ,journal= ( ... The way in which the polymer fragments, before it is separated in the GC, can help in identification. Pyrolysis gas ... to pyrolysis-gas chromatography and mass spectrometry for the comprehensive characterization of water-soluble polymers". ...
Most commercial plastics are synthetic polymers derived from petrochemicals. They tend to resist biodegradation. PHB-derived ... Natural and Synthetic Biomedical Polymers. pp. 1-31. doi:10.1016/B978-0-12-396983-5.00001-6. ISBN 9780123969835. Tepha Medical ... The polymer is primarily a product of carbon assimilation (from glucose or starch) and is employed by microorganisms as a form ... In 1996 Monsanto (who sold PHB as a copolymer with PHV under the trade name Biopol) bought all patents for making the polymer ...
Natural and Synthetic Biomedical Polymers. ISBN 978-0-12-396983-5. v t e. ...
Few synthetic polymers are entirely crystalline.[44] The crystallinity of polymers is characterized by their degree of ... Types of branched polymers include star polymers, comb polymers, polymer brushes, dendronized polymers, ladder polymers, and ... Randomly oriented polymer Interlocking of several polymers *Disordered polymers: In the solid state, atactic polymers, polymers ... slightly cross-linked polymer (elastomer) highly cross-linked polymer (thermoset) Polymer architecture. Main article: Polymer ...
... is the world's third-most widely produced synthetic plastic polymer (after polyethylene and polypropylene[7]). About 40 million ... After the polymer has grown by about 10 times, the short polymer precipitates inside the droplet of VCM, and polymerization ... The polymers are linear and are strong. The monomers are mainly arranged head-to-tail, meaning that there are chlorides on ... The polymer is then passed through a centrifuge to remove water. The slurry is further dried in a hot air bed, and the ...
... biodegradable synthetic polymer. Chemically, polydioxanone is a polymer of multiple repeating ether-ester units. It is obtained ... Middleton, J.; A. Tipton (March 1998). "Synthetic biodegradable polymers as medical devices". Medical Plastics and Biomaterials ... The ether oxygen group in the backbone of the polymer chain is responsible for its flexibility. Polydioxanone is used for ... Other biodegradable polymers: polycaprolactone polyglycolide polylactic acid poly(lactic-co-glycolic acid) poly-3- ...
The predominant use of LD currently is in the study of bio-macromolecules (e.g. DNA) as well as synthetic polymers. LD uses ... FtsZ Polymer-bundling by the Escherichia coli ZapA Orthologue, YgfE, Involves a Conformational Change in Bound GTP' 2007, ...
However, in 1962 this polymer was used to develop the first synthetic absorbable suture which was marketed under the tradename ... doi:10.1016/0032-3861(79)90009-0. Middleton, J.; A. Tipton (March 1998). "Synthetic biodegradable polymers as medical devices ... "Biodegradable Synthetic Polymers for tissue engineering" (PDF). European Cells and Materials. 5: 1-16. doi:10.22203/eCM.v005a01 ... PGA had found little use because of its sensitivity to hydrolysis when compared with other synthetic polymers. ...
Ravve A (2006). Light-Associated Reactions of Synthetic Polymers. New York: Springer. ISBN 9780387318035. Fouassier JP, Lalevée ... An example of a widely used polymer of this class is SU-8. SU-8 was one of the first polymers used in this field, and found ... Radiation of the polymers in the presence of an initiator results in the formation of a chemically resistant network polymer. A ... Polymers that form networks during photopolymerization are referred to as negative resist. Conversely, polymers that decompose ...
Holding, S.R.; Meehan, E. (1995). Molecular Weight Characterization of Synthetic Polymers. Shrewsburry: RAPRA Technology Ltd.. ... One chamber contains pure solvent and the other chamber contains a solution in which the solute is a polymer with an unknown M ... A low concentration solution is created by adding a small amount of polymer to a solvent. This solution is separated from pure ... While toluene and water are useful solvent for many compounds, not all polymers are miscible in toluene or water. Regenerated ...
"Biodegradable synthetic polymers for tissue engineering". European Cells and Materials. 5: 1-16. doi:10.22203/eCM.v005a01. PMID ... Lignin-based polymer composites are bio-renewable natural aromatic polymers with biodegradable properties. Lignin is found as a ... Oxo-biodegradation of polymer material has been studied in depth at the Technical Research Institute of Sweden and the Swedish ... Because starch polymers on their own are brittle at room temperature, plasticizers are added in a process called starch ...
1 (1). doi:10.1038/s42004-018-0031-1. Rogers ME, Long TE (2003). Synthetic Methods in Step-Growth Polymers. Hoboken, NJ, USA: ... Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are ... Polyethylene terephthalate, the polyester with the greatest market share, is a synthetic polymer made of purified terephthalic ... Gurunathan T, Mohanty S, Nayak SK (January 2016). "Hyperbranched polymers for coating applications: a review". Polymer-Plastics ...
Two main groups of polymers exist: synthetic polymers and biopolymers. Synthetic polymers are artificially manufactured, and ... Both synthetic and natural rubber are polymers.[citation needed] Varieties of each synthetic polymer product may exist, for ... Since the invention of the first synthetic polymer product, bakelite, synthetic polymer products have frequently been invented. ... Common synthetic organic polymers are polyethylene (polythene), polypropylene, nylon, teflon (PTFE), polystyrene, polyesters, ...
Kuczkowski, Joseph A. (2011). "STABILIZATION OF RAW DIENIC SYNTHETIC RUBBER POLYMERS". Rubber Chemistry and Technology (84.3): ... Chemicals and Specialty Polymers 2001 - retired from Goodyear Kuczkowsi holds 23 US patents. Of these, 12 are products or ...
Occasionally, other coating materials are used, for example synthetic polymers, shellac, corn protein zein or other ... Synthetic polymers: polyvinylpyrrolidone (PVP), polyethylene glycol (PEG)... Binders are classified according to their ... Examples of disintegrants include: Crosslinked polymers: crosslinked polyvinylpyrrolidone (crospovidone), crosslinked sodium ... and selenium The amino acids cysteine and methionine Citric acid and sodium citrate Synthetic preservatives like the parabens: ...
Gardel, M. L. (2013). "Materials science: Synthetic polymers with biological rigidity". Nature. 493 (7434): 618-9. Bibcode: ... a polymer which cannot rotate around its main chain carbon atoms. He separated the left-handed and right-handed polymer helices ... Very early on in his career Nolte discovered the first example of a polymer with a stable helical structure, called ... After his retirement he received twice a prestigious ERC Advanced grant to study the encoding of information into polymers by ...
synthetic polymer, ca. 1kcal/g Lactulose. -. synthetic disaccharide Fiber contents in food[edit]. Dietary fibers are found in ... Food polymers may be soluble in and/or plasticized by water. Water is the most important plasticizer, particularly in ... Dietary fiber means carbohydrate polymers with more than 10 monomeric units, which are not hydrolyzed by digestive enzymes in ... Cross-linking of different polymers, protein and polysaccharides, either through chemical covalent bonds or cross-links through ...
synthetic polymer, ca. 1kcal/g Contents in food[edit]. Dietary fibers are found in fruits, vegetables and whole grains. The ... Food polymers may be soluble in and/or plasticized by water.. *The variables include chemical structure, polymer concentration ... Fibre means carbohydrate polymers with three or more monomeric units, which are neither digested nor absorbed in the human ... Dietary fiber means carbohydrate polymers with more than 10 monomeric units, which are not hydrolyzed by digestive enzymes in ...
"Acetylene Polymers and their Derivatives. II. A New Synthetic Rubber: Chloroprene and its Polymers". Journal of the American ... Chloroprene is a colorless volatile liquid, almost exclusively used as a monomer for the production of the polymer ... polychloroprene, a type of synthetic rubber. Polychloroprene is better known as Neoprene, the trade name given by DuPont. ... concern for chloroprene is limited to the facilities producing chloroprene and using chloroprene to produce the synthetic ...
A New Synthetic Rubber: Chloroprene and its Polymers". J. Am. Chem. Soc. 53 (11): 4203-4225. doi:10.1021/ja01362a042.CS1 maint ... Patterson, Gary (2014). Polymer Science from 1935-1953: Consolidating the Paradigm. Springer. p. 28. ISBN 9783662435366. ... Wallace H. Carothers, Ira Williams, Arnold M. Collins, and James E. Kirby (1937). "Acetylene Polymers and their Derivatives. II ...
For specialized or small scale organic synthetic applications, ketones are often prepared by oxidation of secondary alcohols: R ... Isophorone, derived from acetone, is an unsaturated, asymmetrical ketone that is the precursor to other polymers. Muscone, 3- ... Ketones are produced on massive scales in industry as solvents, polymer precursors, and pharmaceuticals. In terms of scale, the ...
Synthetic membrane earphone[edit]. Modern technology seeks to minimize or prevent listener fatigue entirely. Blockage of the ... A film of medical-grade polymer (ePTFE) is stretched over a hole, essentially acting as a membrane to help absorb pressure ... Researchers at Asius Technologies have designed a synthetic membrane to take the brunt of the pounding in earphones away from ...
SiC can be added as a powder or a polymer to diboride UHTCs. The addition of SiC as a polymer has several advantages over the ... UHTCs possess simple empirical formulas and thus can be prepared by a wide variety of synthetic methods. UHTCs such as ZrB2 can ... 1993). "A polymer precursor route to metal borides". Chemistry of Materials. 5 (11): 1659-1668. doi:10.1021/cm00035a013.. ... Dinitrile polymers formed from the condensation of dinitrile with decaborane satisfy these criteria. ...
... progress in polymer science in the 1950s paved way for the "age of plastics".[24] ... while PSE focused on its synthetic elements, such as control system and process design.[21] Developments in chemical ...
... s are employed in a wide array of synthetic reactions, primarily due to their success in facilitating the ... Despite recovery by filtration, polymer catalytic activity decreased by approximately 4-8% in each recycle experiment. ... A Booming Methodology in Synthetic Organic Chemistry", Chem. Rev., 107: 874-922, doi:10.1021/cr050992x, PMID 17305399 Stambuli ... remarkable utility can be evidenced by the amount of research still being done on understanding and optimizing its synthetic ...
... traditionally of silk but now also of cotton or synthetic fiber, with a rippled or "watered" appearance. Moire, or "watered ... an invisible phase mask is made of a transparent polymer with a wavy thickness profile. As light shines through two overlaid ...
The development of synthetic-enzyme based foaming agents, foam stability enhancing admixtures and specialised foam generating, ... This slurry is further mixed with a synthetic aerated foam in a concrete mixing plant.[9] The foam is created using a foaming ...
The term "additives" in polymer science refers to the chemicals and compounds added to the polymer base to modify its material ... Wide range, e.g., claytronics, synthetic biology Quantum dots Research, experiments, prototypes[26]. LCD, LED Quantum dot laser ... pulling in relatively new polymer engineering and polymer science; recombining from the previous, as well as chemistry, ... Synthetic diamond and carbon nanotubes (e.g., Buckypaper) Programmable matter Graphene Hypothetical, experiments, diffusion, ...
In most cases, biodiesel is compatible with diesel engines from 1994 onwards, which use 'Viton' (by DuPont) synthetic rubber in ... Many other fungi that can degrade cellulose and other polymers have been observed to produce molecules that are currently being ...
In many synthetic processes using transition metal catalysts, metal nanoparticles play an important role as the actual catalyst ... They offer the specificity required to separate similar compounds from each other, such as separating polymers in plastic waste ... A. Eftekhari; O. Seddiki (2017). "Synthesis and Properties of Polymerized Ionic Liquids". European Polymer Journal. 90: 245-272 ... PILs have a similar range of applications, comparable with those of ionic liquids but the polymer architecture provides a ...
For foam drilling fluids, synthetic detergents and soaps are used, along with polymers, to disperse foam bubbles into the air ... A dispersant or a dispersing agent or a plasticizer or a superplasticizer is either a non-surface active polymer or a surface- ...
Most musical instruments produced today use strings with cores made of other materials, generally steel or synthetic polymer. ... since cotton is usually cheaper and wounds closed with either cotton or synthetic threads are less prone to infection.[8] ... although it had more popularity in the past and is being displaced by synthetic strings. ...
3) are the most common positively charged moieties in proteins, specifically in the amino acid lysine.[16] The anionic polymer ... Primary amine synthesis: synthetic protocols from *[1] Amines have been implicated in migraine headaches ... The alkyl diazonium salts are of little synthetic importance because they are too unstable. The most important members are ...
In water treatment, coagulation flocculation involves the addition of polymers that clump the small, destabilized particles ... "Advances in the quest for substitute for synthetic organic polyelectrolytes as coagulant aid in water and wastewater treatment ... polymers that bridge the colloids together) are also often used to increase the efficiency of the process.[7] ...
Polyethylene terephthalate (aka PET, PETE or the obsolete PETP or PET-P) is a thermoplastic polymer resin of the polyester ... It is used in synthetic fibers; beverage, food and other liquid containers; thermoforming applications; and engineering resins ...
Styrene is used in polymer chemistry as a monomer. This means many styrene molecules can bond together to make a larger ... 3-butadiene to make a copolymer which is a kind of synthetic rubber. For another example, styrene is mixed with acrylonitrile ... Polystyrene is a kind of polymer often used as a plastic. This kind of chemical reaction is called polymerization. ... Styrene can also bond with other kinds of monomers to make other kinds of polymers called copolymers. For one example, styrene ...
... polymer chemistry, radiochemistry, solid-state chemistry, sonochemistry, supramolecular chemistry, surface chemistry, synthetic ... Primary systems of study include the chemistry of condensed phases (solids, liquids, polymers) and interfaces between different ...
... molecule is needed to make nucleic acid polymers, represents the original form of life.[95] This theory is called RNA-peptide ... as well as the need for RNA polymers of some length before seeing enzymatic activity, have led some to reject the RNA world ... "Primitive genetic polymers". Cold Spring Harbor Perspectives in Biology. 2 (12): a002196. doi:10.1101/cshperspect.a002196. PMC ...
For example, one pathway goes through the plant cell wall polymers.[117] The plant ascorbic acid biosynthesis pathway most ... In 1934 Hoffmann-La Roche trademarked synthetic vitamin C under the brand name Redoxon[172] and began to market it as a dietary ... became the first pharmaceutical company to mass produce and market synthetic vitamin C, under the brand name Redoxon."[173] ...
Bansal, Raj K. (1996). Synthetic approaches in organic chemistry. s. 192. ISBN 0-7637-0665-5.. ... Organiske lithiumforbindelser anvendes bredt i produktionen af polymer og finkemikalier. Indenfor polymerindustrien, som er den ...
... light-cured acrylate polymers, then terminated with optical fiber connectors, and finally assembled into a cable. After that, ...
Vanadium oxide gives ceramics a golden color, and other vanadium compounds are used as catalysts to produce polymers.[4] ...
Noncovalent functionalization of boron nitride nanotubes using water-soluble synthetic polymers and the subsequent preparation ... Y.Q. Fu, Y. Huang, W. Meng, Z. Wang, Y. Bando, D. Golberg, C.C. Tang, C.Y. Zhi : «Highly ductile UV-shielding polymer ... V. K. Thakur, J. Yan, M. Lin, C. Zhi, D. Golberg, Y. Bando, R. Sim and P. S. Lee : «Novel polymer nanocomposites from ... T. Terao, Y. Bando, M. Mitome, C. Zhi, C. Tang and D. Golberg : «Thermal Conductivity Improvement of Polymer Films by Catechin- ...
It is a strong oxidizing agent that is used in polymer chemistry, as an etchant, and as a cleaning and bleaching agent. ... Synthetic glazes (E910-919). *Improving agents (E920-929). *Packaging gases (E930-949) ... Commercially important polymers prepared using persulfates include styrene-butadiene rubber and polytetrafluoroethylene. In ...
Polymer fibers. *Polymer fibers are a subset of man-made fibers, which are based on synthetic chemicals (often from ... Synthetic fibers. Main article: Synthetic fiber. Synthetic come entirely from synthetic materials such as petrochemicals, ... Semi-synthetic fibers. Semi-synthetic fibers are made from raw materials with naturally long-chain polymer structure and are ... The earliest semi-synthetic fiber is the cellulose regenerated fiber, rayon.[5] Most semi-synthetic fibers are cellulose ...
Among the themes of his research are synthetic organo-f-element and early-transition metal organometallic chemistry, polymer ... Hong, Miao; Chen, Eugene Y.X. (2017). "Chemically recyclable polymers: a circular economy approach to sustainability". Green ...
The mask faceplate is a high impact strength polymer which is securely attached to the skirt or frame. A failure of the ... shape and maximum size of mask and helmet windows changed with availability of tougher and easily moulded transparent synthetic ...
For example, synthetic peptides can be used as probes to see where protein-peptide interactions occur- see the page on Protein ... Hence, peptides fall under the broad chemical classes of biological oligomers and polymers, alongside nucleic acids, ...
a b The reductive decyanation reaction: chemical methods and synthetic applications Jean-Marc Mattalia, Caroline Marchi- ... a nitrile-containing polymer used in latex-free laboratory and medical gloves. Nitrile rubber is also widely used as automotive ... Gregory, Robert J. H. (1999). "Cyanohydrins in Nature and the Laboratory: Biology, Preparations, and Synthetic Applications". ... requires a careful control of the temperature and of the ratio of reagents in order to avoid the formation of polymers, which ...
The two discovered a new element in a molybdenum sample that was used in a cyclotron, the first synthetic element to be ... "synthetic" elements that were discovered later (plutonium, neptunium, astatine, and promethium) were eventually found in trace ...
The ability of synthetic genetic polymers (XNAs) with alternative backbone chemistries not found in nature to fold into defined ... The emergence of catalysis in early genetic polymers such as RNA is considered a key transition in the origin of life1, pre- ... These results establish technologies for the discovery of catalysts in a wide range of polymer scaffolds not found in nature. ... have now synthesized a series of catalytic polymers using four different backbone chemistries (XNAs) not found in nature. The ...
Intriguingly, microorganisms have evolved to exploit these ancient mechanisms to also decompose synthetic plastic polymers. In ... Microorganisms enzymatically degrade natural polymers and synthetic plastics to enable a sustainable environment. This Review ... of these natural biocatalysts is valuable if we are to exploit their potential for the degradation of synthetic polymers. ... this Review, we summarize the mechanisms by which they decompose non-starch plant biomass and the six major types of synthetic ...
Sendes innen 1‑3 virkedager.. Kjøp boken Synthetic Biodegradable Polymers av (ISBN 9783642271533) hos Fri frakt. ... and Related Polymers, by Manfred Amann and Oliver Minge.- Recent Developments in Ring-Opening Polymerization of Lactones, by P ...
Organic polymersEdit. The eight most common types of synthetic organic polymers, which are commonly found in households are: * ... Synthetic polymers are human-made polymers. From the utility point of view they can be classified into three main categories: ... Artificial polymer: Man-made polymer that is not a biopolymer. Note 1: Artificial polymer should also be used in the case of ... Some familiar household synthetic polymers include: Nylons in textiles and fabrics, Teflon in non-stick pans, Bakelite for ...
Large pore synthetic polymer membranes. US6440306 *. Jan 25, 2000. Aug 27, 2002. Pall Corporation. Large pore synthetic polymer ... The polymers which can be used include any polymer capable of forming a membrane. Polymers which have been found to be ... Large pore synthetic polymer membranes. US6110369 *. Jul 29, 1997. Aug 29, 2000. Usf Filtration And Separations Group, Inc.. ... Large pore synthetic polymer membranes. US6277281 *. May 15, 2000. Aug 21, 2001. Usf Filtration And Separations Group Inc.. ...
In this review, synthetic efforts towards the construction of dendritic fullerene-rich nanostructures have been compiled and ... Polymers 2012, 4, 501-538. AMA Style. Hahn U, Vögtle F, Nierengarten J-F. Synthetic Strategies towards Fullerene-Rich Dendrimer ... Polymers. 2012; 4(1):501-538. Chicago/Turabian Style. Hahn, Uwe; Vögtle, Fritz; Nierengarten, Jean-François. 2012. "Synthetic ... Polymers 2012, 4(1), 501-538; doi:10.3390/polym4010501. Synthetic Strategies towards Fullerene-Rich Dendrimer Assemblies. Uwe ...
In many applications, polymer materials interact with other polymer or non-polymer based materials. In some cases these ... Title: Polymers at synthetic and biological surfaces. Speaker: Prof. Harm-Anton Klok, Ecole Polytechnique Fédérale de Lausanne ... 1) Selective deposition on surfaces: Deposition of polymers or polymer particles in a selective and controlled manner onto ... which cover a range of fundamental problems and phenomena at the interface between polymers and synthetic or biological ...
... for Synthetic Polymers and Polymer Materials 1974 - 1st Edition. Print Book & E-Book. ISBN 9780080223711, 9781483182025 ... For Synthetic Polymers and Polymer Materials 1974 provides a standardized abbreviation of the various synthetic polymers and ... for Synthetic Polymers and Polymer Materials 1974. References. Chapter 2. Basic Definitions of Terms Relating to Polymers 1974 ... List of Standard Abbreviations (Symbols) for Synthetic Polymers and Polymer Materials 1974 1st Edition. International Union of ...
The backbone of these synthetic polymers is based on modified vinyl polymers, such as polyvinyl alcohol, polyacrylamides and ... Synthetic polymers having hydrogen bonding capability and one or more aliphatic hydrocarbon moieties are capable of providing ... 1. A synthetic polymer containing one or more aliphatic hydrocarbon moieties, said synthetic polymer having the following ... A synthetic polymer containing one or more aliphatic hydrocarbon moieties, said synthetic polymer having the following ...
Synthetic peptide-based polymers represent a unique class of macromolecules able to mimic the properties of natural proteins in ... Secondary structures of synthetic polypeptide polymers C. Bonduelle, Polym. Chem., 2018, Advance Article , DOI: 10.1039/ ... Synthetic peptide-based polymers represent a unique class of macromolecules able to mimic the properties of natural proteins in ... In this review article, the fundamental principles of polypeptide polymer structuring are summarized. It is also highlighted ...
... an objec of this invention to provide an improved synthetic high polymer wherein the above mentioned drawbacks of the polymers ... and cooling the co-polymer thus produced followed by removal thereof from the mold. The synthetic high polymer according to ... 1. A hydrophilic synthetic high solid polymer which consists essentially of: 30 to 5 parts by weight of N-(1,1-dimethyl-3 ... Hydrophilic synthetic high polymers for soft contact lenses and a process for manufacturing the same. US 3813447 A ...
Contrary to the prior art polymers, the time of curing is on the order of only a minute or so. The viscosity and thickness of ... The polymer, whch is injected into the lens capsule (16) after removal of the lens, comprises an oxygen-stabilized ... the polymer formed may be tailored to achieve a desired index of refraction of between about 1.3 and 1.6. ... A synthetic polymer (24) is provided for endocapsular lens (18) replacement in an eye (10). ...
Wyatt Technologys synthetic polymer application notes cover a variety of techniques including SEC-MALS, DLS, ELS, FFF-MALS and ... Synthetic Polymers Application Notes. Branching ratios, absolute molar mass and size of synthetic polymers. ... ... ...
This work presents our results in application of watersoluble polymers in immunology-related areas: design ofantigenic ... Synthetic Water-Soluble Polymers in Self-Organizing Nanosystems for Immynology E.N. Danilovtseva, V.V. Annenkov, E.A. Shmeleva ... Formation of the polymer-antigen complexes and their self-organization proceeds by multiple cooperative hydrogen/ionic bonds. ... Functional polymers, antigenic erythrocytic diagnosticums, immunologic adjuvants, self-organization, interpolymeric complexes. ...
Table 3. Summary of the synthetic methods used for the preparation of aerogel particles from synthetic polymers reviewed in ... Table 3. Summary of the synthetic methods used for the preparation of aerogel particles from synthetic polymers reviewed in ... Synthetic Polymer Aerogels in Particulate Form. Patrina Paraskevopoulou *. , Despoina Chriti, Grigorios Raptopoulos. and George ... Synthetic polymer aerogels in powder, micro granule and spherical millimeter-size bead form are reviewed here. ...
Synthetic polymers invented by IBM eliminated five types of multidrug-resistant bacteria without causing toxic effects or ... Targeting drug-resistant bacteria with synthetic polymers is not a new idea, but it has run into challenges, such as toxicity ... created a new class of synthetic polymers targeting five deadly drug-resistant bacteria. Although this approach is not new, ... which could lead to a toxic buildup of polymer in the body. Some polymers had trouble targeting multiple strains of bacteria, ...
Fifty-eight fungi have been tested for their ability to degrade a recalcitrant synthetic polymer polyamide-6, generally known ... Ability of fungi to degrade synthetic polymer nylon-6 Chemosphere. 2007 May;67(10):2089-95. doi: 10.1016/j.chemosphere.2006.09. ... Fifty-eight fungi have been tested for their ability to degrade a recalcitrant synthetic polymer polyamide-6, generally known ... The study shows that only white rot fungi are able to break down nylon-6. For the first time this polymer was shown to be ...
... Solvay, Hexcel, Mitsubishi Rayon - published on ... 2. Synthetic Polymer market in China. 3. Synthetic Polymer market in Europe. 4. Synthetic Polymer market in Japan. 5. Synthetic ... the report Global Synthetic Polymer Market 2017 describes Synthetic Polymer industry expansion game plan, the Synthetic Polymer ... The Synthetic Polymer market is divided into Six major geographical segments:. 1. Synthetic Polymer market in United States. ...
They are however expensive when compared to the synthetic polymers. IUPAC definition Artificial polymer: Man-made polymer that ... Synthetic polymers are human-made polymers, often derived from petroleum oil. From the utility point of view they can be ... Some familiar household synthetic polymers include: Nylons in textiles and fabrics, Teflon in non-stick pans, Bakelite for ... A wide variety of synthetic polymers are available with variations in main chain as well as side chains. The back bones of ...
... disadvantages of synthetic polymers online Wholesalers - choose disadvantages of synthetic polymers from 76 list of China ... disadvantages of synthetic polymers , of synthetic blend oil , of synthetic fiber , manufacturing of synthetic fiber , list of ... of synthetic fibers , types of synthetic fibers , examples of synthetic fibers , of synthetic leather , made of synthetic ... UHMWPE Synthetic ice rink ,hockey rink board ...Introduction Synthetic ice is a solid polymer material designed for skating ...
Key questions answered in Synthetic latex polymers market report:. *What will the Synthetic latex polymers market size be in ... What are the challenges to Synthetic latex polymers market growth?. *Who are the key vendors in Synthetic latex polymers market ... Synthetic latex polymers Market Research Report covers the present scenario and the growth prospects of the Synthetic latex ... Synthetic latex polymers Market, has been prepared based on an in-depth market analysis with inputs from industry experts. ...
"Weve shown that our synthetic molecule binds to the immune cell, which in turn blocks the virus from attaching and entering. ...
New Synthetic Polymer Helps Solve Sticky Chewing Gum Messes TOPICS:DisneyScience ... Sure there are concerns about synthetic polymers and other chemicals contained in the gum, but they are tiny compared to the ... So imagine if a new polymer technology came along that would make gum less prone to stick to hair and more easily removed from ... Its portfolio of polymer-based innovations also includes nicotine gum, and high-performance household cleaning and personal ...
Synthetic polymers are a mixture of macromolecules of different length and sequence and are analysed via statistical measures ( ... The methods for sequence analysis of synthetic polymers differ from the sequence analysis of biopolymers (e. g. DNA or proteins ... Mutlu, Hatice; Lutz, Jean-François (2014-11-24). "Reading Polymers: Sequencing of Natural and Synthetic Macromolecules". ... Structure analysis of the reaction products by IR and 1H and 13C NMR". Journal of Polymer Science: Polymer Physics Edition. 20 ...
Vinyl Acetate Polymers, Acrylics, Styrene-Butadiene Latex), By Application (Paper & Paperboard Coatings, Paints & Coatings, ... Synthetic and Bio Emulsion Polymers Market by Product ( ... Bio Emulsion Polymers Market Synthetic Vinyl Acetate Polymers ... Synthetic and Bio Emulsion Polymers Market will surpass $40 bn by 2024: Global Market Insights, Inc.. Synthetic and Bio ... Synthetic and Bio Emulsion Polymers Market size will cross USD 40 billion by 2024; according to a new research report by Global ...
3M General Purpose 45 Medium Strength Synthetic Polymer Adhesive 10.25 oz. Item no. 1490952. ,. 45. ... 3M General Purpose 45 Medium Strength Synthetic Polymer Adhesive 10.25 oz.. Item no. 1490952. ,. 45. ...
Non-conventional fluorescent biogenic and synthetic polymers without aromatic rings R. Ye, Y. Liu, H. Zhang, H. Su, Y. Zhang, L ... decipher the origin of fluorescence by studying the photophysical properties of a series of non-aromatic biogenic and synthetic ... explanation is further justified by the study of the hierarchical influence on fluorescence and applied to biomimetic polymers ...
  • The creation of ultra thin films has been achieved using two different techniques, spin-coating and in-situ polymerization of thin films of monomers containing a sacrificial polymeric porogen, and autoassembly of MIP nanoparticles with the aid of an associative linear polymer. (
  • Soluble monomer/polypeptide conjugates can be polymerized in solution with additional nonderivatized organic monomers to form desired polypeptide-containing polymers. (
  • A reaction fundamental to polymer chemistry is the initiation of end-to-end covalent linkages between soluble organic monomeric compounds (monomers) leading to the formation of larger polymeric molecular structures (polymers). (
  • Synthetic polymersmay be formed from a single monomeric species (homopolymers) or from a mixture of different monomers (copolymers). (
  • By varying the chemical composition or ratios of the monomers, it is possibleto form either soluble or insoluble polymers which comprise a broad range of chemical and physical structures. (
  • In vinyl polymers, so called because they are generally derived from substituted vinyl reactants or monomers (Figure 2), the polymer backbone is composed of only carbon atoms. (
  • Copolymers are polymers derived from two different monomers (M andN). (
  • The properties of polymers depend on what monomers they are made from and the conditions under which they are made. (
  • ethylenically unsaturated monomers in an inert organic liquid in which the polymer is insoluble by forming the particles in the liquid by the polymerization therein of .alpha. (
  • These monomers were copolymerized with N,N‐dimethylacrylamide (DMAA) to yield polymer‐based synthetic mimics of antimicrobial peptides (SMAMPs). (
  • This man-made polymers area unit those that include many continuance structural units called monomers . (
  • Within a given polymer molecule, the monomers are usually identical or similar in structure. (
  • The chemical reaction by which monomers are linked together to form polymers is called polymerization . (
  • The properties of a polymer depend on these shapes and on the structures of the monomers that make up the chains. (
  • Also, properties such as the solubility , flexibility, and strength of the polymer vary according to the types of monomers in the chains. (
  • Research efforts have subsequently extended this class of materials to non-silica inorganic oxides, natural and synthetic organic polymers, carbons, metals and ceramic materials [ 12 ]. (
  • Furthermore, it covers various carbon-rich materials, such as graphene and carbon nanotubes, followed by a look at how the different synthetic pathways and strategies influence their final properties, for example, for use in organic electronic devices. (
  • A yarn finish composition is disclosed for incorporation with synthetic organic polymer yarn or yarn products to render the same oil repellent and resistant to soiling. (
  • These polymers include amine-terminated dendrimers, amine-containing linear polymers (with primary, secondary or tertiary amines), organic ammonium polymers, polyethylene glycol (PEG) neutral polymers, co-polymers (containing neutral and cationic parts) and phosphonium end-grafted PEG polymers. (
  • Furthermore, the chiral polymers developed in this study are insoluble in the usual organic solvents or water. (
  • The present invention relates to compounds and methods used for the de novo synthesis of organic polymers that contain polypeptides as an integral part of their backbone structure. (
  • The major suspect of fouling is cationic organic polymers applied in the wastewater sludge treatment. (
  • Stable dispersions of synthetic polymer in an inert organic liquid in which the polymer is insoluble are prepared by forming the particles in the liquid in the presence in solution in the liquid of a polymeric stabilizer which associates with the particles and provides around the particles a stabilizing steric barrier. (
  • However, many of the available stabilizers are unsatisfactory in stabilizing effect, are unstable to heat and subject to oxidation, and are easily extracted from the synthetic polymer composition by water and organic solvents. (
  • Most polymers are organic -that is, their long chains have backbones of mostly carbon atoms. (
  • Abstract An attempt has been made to selectively oxidise synthetic lignin-like polymer for fine chemicals. (
  • Professor Fink has published several books on physical chemistry and polymer science including A Concise Introduction to Additives for Thermoplastic Polymers (Wiley-Scrivener 2009), The Chemistry of Biobased Polymers (Wiley-Scrivener 2014), Metallized and Magnetic Polymers (Wiley-Scrivener 2016) and Polymer Waste Management (Wiley-Scrivener 2018). (
  • Polymer Chemistry: Properties and Applications. (
  • 2014). The class of PPEs has emerged in the last decade to a powerful polymer class for various applications and due to the versatility of its chemistry, it certainly will find applications in diverse areas of research and industry. (
  • In environmental analytical chemistry, there is growing interest in using MIPs as synthetic receptors for the detection of endocrine disrupting compounds. (
  • The first a part of the ebook has 5 chapters together with an creation, a dialogue on physico-chemistry of thermal degradation of artificial polymers and on instrumentation utilized in analytical pyrolysis, a bankruptcy discussing what form of info may be acquired from analytical pyrolysis, and a bankruptcy devoted to the research and characterization of artificial polymers. (
  • The competitive landscape in the Chinese market for synthetic latex polymers is fragmented, with the top 10 suppliers accounting for around 38% of the total market share. (
  • Get more insights about the Chinese market for synthetic latex polymers with Kline's free webinar Synthetic Latex Polymers: China Market Landscape . (
  • Describes the characteristics for resilient floor coverings based upon synthetic thermoplastic polymers, supplied either in roll or tile form. (
  • Polyester is a category of thermoplastic polymers. (
  • To further modulate cellular responses, biodegradable polymers of PLGA were investigated for controlled and sustained delivery of bioactive molecules. (
  • In addition, biodegradable polymers are being sought out. (
  • These results extend catalysis beyond biopolymers and establish technologies for the discovery of catalysts in a wide range of polymer scaffolds not found in nature 8 . (
  • Note 1: Artificial polymer should also be used in the case of chemically modified biopolymers. (
  • Note 2: Biochemists are now capable of synthesizing copies of biopolymers that should be named Synthetic biopolymer to make a distinction with true biopolymers. (
  • The methods for sequence analysis of synthetic polymers differ from the sequence analysis of biopolymers (e. g. (
  • Synthetic polymers are produced by chain-growth or step-growth polymerization and show thereby polydispersity, whereas biopolymers are synthesized by complex template-based mechanisms and are sequence-defined and monodisperse. (
  • These synthetic macromolecules are then exploited to directly form functional materials, or associated to biopolymers such as peptides and cellulose to form natural / synthetic polymer conjugates. (
  • Fibers forming in polymers and biopolymers as extreme case of morphology are only part of the team's work. (
  • Global market study " Synthetic Polymer Market 2017-2022 " analyses the crucial factors of the Synthetic Polymer market based on present industry situations, market demands, business strategies adopted by Synthetic Polymer market players and their growth scenario. (
  • Finally, the report Global Synthetic Polymer Market 2017 describes Synthetic Polymer industry expansion game plan, the Synthetic Polymer industry data source, appendix, research findings and the conclusion. (
  • Synthetic latex polymers Market Research Report covers the present scenario and the growth prospects of the Synthetic latex polymers Industry for 2017-2021. (
  • The synthetic latex polymers market is estimated to be USD 27.58 Billion in 2017 and is projected to reach USD 34.53 Billion by 2022, at a CAGR of 4.6% from 2017 to 2022. (
  • The styrene acrylics segment is projected to lead the synthetic latex polymers market from 2017 to 2022 both, in terms of value and volume. (
  • From the utility point of view they can be classified into three main categories: thermoplastics, elastomers and synthetic fibers. (
  • thermoplastics , elastomers and synthetic fibers . (
  • In general, structural morphology of solidified polymers - which can be varied from an isotropic structure to well-oriented anisotropic fibers - determines physical and mechanical properties of the material and is strongly dependent on processing conditions. (
  • Thin films of the semicrystalline polymers, with n = 8 and 10, displayed a necking phenomenon upon cold drawing, and could be drawn from the melt or concentrated solution into fibers. (
  • Their work has given birth to a proliferation of plastics, artificial fibers, and synthetic rubber. (
  • After postdoctoral research with David N. Reinhoudt (University of Twente) and Samuel I. Stupp (University of Illinois at Urbana-Champaign, USA), he joined the Max Planck Institute for Polymer Research (Mainz, Germany) in early 1999 as a project leader in the group of Klaus Müllen. (
  • After a short post-doctoral stay at INRS-Energie et Matériaux near Montréal, he joined the Max-Planck-Institute for Polymer Research in Mainz, Germany, as a post-doctoral fellow in the research group of Prof. Dr. G. Wegner. (
  • Nuclear magnetic resonance (NMR) spectroscopy is known as the most widely applied and "one of the most powerful techniques" for the sequence analysis of synthetic copolymers. (
  • A wide range of synthetic latices is available including styrene-butadiene copolymers (SBR), acrylonitrile-butadiene copolymers, polychloroprene, acrylic polymers, vinyl acetate polymers, vinyl acetate-ethylene polymers, vinyl chloride polymers and copolymers, polybutadiene and polyisoprene. (
  • these compounds are thus said to be inorganic polymers. (
  • Endless Possibilities  New Functional Groups  Different Polymer Backbones Inorganic Polymers  Silicon (Si) Inorganic Polymers  Silicon (Si)  Germanium (Ge) Inorganic Polymers  Silicon (Si)  Germanium (Ge)  Boron-Nitrogen (B - N) Inorganic Polymers  Silicon (Si)  Germanium (Ge)  Boron-Nitrogen (B - N)  Aluminum - Nitrogen (Al - N) … …  On and on Conclusions:   Polymers make up all sorts of materials that are all around us! (
  • There are also some inorganic polymers, such as the silicones , which have a backbone of alternating silicon and oxygen atoms. (
  • The plastic kits and covers are mostly made of synthetic polymers like polythene and tires are manufactured from Buna rubbers. (
  • We also describe an XNA-XNA ligase metalloenzyme in the FANA framework, establishing catalysis in an entirely synthetic system and enabling the synthesis of FANA oligomers and an active RNA endonuclease FANAzyme from its constituent parts. (
  • His current research activities include the synthesis and characterization of new conjugated oligomers and polymers for applications in the areas of micro-electronics, electro-optics, energy and genomics. (
  • Chemists are remarkably proficient at directing the synthesis of small molecules, but fine‐tuning the structures of large molecules, such as those found in polymers, is far more taxing. (
  • Shohei Takata et al, Synthesis of cinchona alkaloid sulfonamide polymers as sustainable catalysts for the enantioselective desymmetrization of cyclic anhydrides, RSC Adv. (2016). (
  • A method is disclosed for the de novo synthesis of polypeptide-containing polymers. (
  • This disclosure also includes a description of, and a method for the preparation of, a class of polymerizable compounds used in the synthesis of polypeptide-containing polymers. (
  • The formed low-molecular weight hydrolysis products are taken up by the microorganisms and used both for energy production, resulting in the formation of CO 2 , and for the synthesis of cellular structures and macromolecules, resulting in incorporation of polymer-derived carbon into the microbial biomass. (
  • Synthesis and Bioactivity of Polymer‐Based Synthetic Mimics of Antimicrobial Peptides (SMAMPs). (
  • Synthetic polymer hydrogels differ in their characteristics due to various chemical structures, synthesis technique, and water content or cross-linking. (
  • Technavio has published a new market research report on the global natural polymers market from 2018-2022. (
  • Kirstein, I. , Wichels, A. , Krohne, G. and Gerdts, G. (2018): Mature biofilm communities on synthetic polymers in seawater - Specific or general? (
  • The book provides a broad overview of functional synthetic polymers. (
  • This International Standard gives definitions relative to polymer dispersions and latices and identifies the test methods applicable for determining the properties of polymer dispersions, comprising products of synthetic or natural origin including synthetic and natural rubber latices. (
  • Some of the test methods apply only to polymer dispersions or latices of specific chemical composition or to those to be used for specific applications. (
  • His industry and academic career spans more than 30 years in the fields of polymers, and his research interests include characterization, flame retardancy, thermodynamics and the degradation of polymers, pyrolysis, and adhesives. (
  • An understanding of these natural biocatalysts is valuable if we are to exploit their potential for the degradation of synthetic polymers. (
  • The release of bioactive molecules from PLGA/PEG microparticles was governed by both diffusion and polymer degradation. (
  • We take the bridging element from DNA to materials science as the installation of the phosphate group into the polymer main chain allows installing diverse chemical functionalities, which eventually control the materials properties such as chemical reactivity, folding, self-assembly, or interactions (functionality, responsibility, degradation, blood interactions). (
  • It examines the state-of-the-art in commodity plastics degradation and disposal, and the greater utilization of agricultural polymers in industrial applications. (
  • For high recovery of BPA with low polymer matrix degradation, the hydrolysis conditions were determined to be treatment with 1.0 mol L −1 NaOH for 48 h. (
  • Among various types of biomaterials, natural and synthetic polymer-based hydrogels have shown promising targeting potential due to their innate pH responsiveness, sustained and controlled release characteristics, and microbial degradation in the colon to release the encapsulated drug moieties. (
  • Synthetic polymers such as polyethylene, polypropylene and polyvinyl chloride undergo degradation upon exposure to ultraviolet light, resulting in discoloration, deterioration in mechanical strength and embrittlement. (
  • Synthetic peptide-based polymers represent a unique class of macromolecules able to mimic the properties of natural proteins in materials sciences since (1) they present the same macromolecular backbone as do proteins, (2) they can be obtained in large scale and in only one step by using the ROP (Ring-Opening Polymerization) methodology, and (3) they can fold into different secondary structures in the same way as do proteins. (
  • In other words, analogous to the industrial melt spinning of a synthetic polymer, in the natural spinning of a silk the molecules (proteins) align (refold), nucleate (denature) and crystallize (aggregate). (
  • A University of Washington research team developed a synthetic polymer that in lab animals acts like natural proteins to form blood clots to stop heavy bleeding, a common danger in trauma cases. (
  • Polymers in Biology Starch DNA Sugar Proteins Kevlar Strong Network of Covalent Bonds And Polar Hydrogen Bonds Time for another Activity! (
  • Gel permeation or size-exclusion chromatography (GPC/SEC) is a valuable analytical technique, able to provide the molecular weight (MW) distribution data and structural information that defines many aspects of polymer performance. (
  • In order to accomplish these important events using a synthetic catalyst, it must necessarily have a large molecular weight. (
  • The amount and composition of monomer and monomer/polypeptide conjugates can be varied in order to provide control of (a) molecular spacing, steric accessibility, and number of polypeptide molecules that are integrally incorporated into the polymer backbone, and (b) the chemical and physical structure of the polymer itself. (
  • The properties of polymers are dependent on many factors including inter- and intrachain bonding, the nature of the backbone, processing events, presence/absence of additives including other polymers, chain size and geometry, and molecular weight distribution. (
  • Synthetic polymers which can adsorb bisphenol A (BPA) and related compounds were prepared by a covalent molecular imprinting technique. (
  • Bartsch RA, Maeda M (1998) (eds) Molecular and ionic recognition with imprinted polymers, ACS Symp Ser 703. (
  • Specifically, this presentation will detail (1) the development of cationic polymerization reactions where polymer chain growth and sequence are regulated with external stimuli and (2) a modular strategy to dictate the shape and composition of polymer molecular weight distribution to precisely control properties. (
  • Investigations of varied R group hydrophobicity, repeat unit ratio, and molecular mass on antimicrobial activity against Escherichia coli and on compatibility with human keratinocytes showed that the polymers with the longest R groups and lowest DMAA content were the most antimicrobial and hemolytic. (
  • For the soluble polymers, number average molecular weights ranged from only 2000-4400 by SEC relative to polystrene standards, indicating the need for further development of polymerization conditions. (
  • The molecular form of elastomers has been likened to a "spaghetti and meatball" structure, where the meatballs signify cross-links between the flexible spaghetti strands (polymer chains). (
  • ethylenically unsaturated groups and groups which are chemically coreactable with the disperse polymer, said process including the step of coreacting the polymeric stabilizer with the disperse polymer to form from 1 to 10 covalent links between the stabilizer molecule and the disperse polymer. (
  • We focus on the structural features of the enzymes that contribute to substrate recognition and then describe the catalytic mechanisms of polymer metabolism. (
  • Using surface-grafted polymers as an example, we will show that swelling-induced chain stretching is an alternative mechanism that can lead to build-up of tension at polymer - substrate interfaces. (
  • A novel biodegradable polymer substrate was developed with micropatterned surfaces composed of PLGA and a block copolymer of PEG and poly(DL-lactic acid) (PDLLA). (
  • A long-term incubation experiment was conducted (15month) with nine different synthetic polymer films as substrate as well as glass using a natural seawater flow-through system. (
  • Activation of lymphocyte proliferation by boronate-containing polymer immobilised on substrate: the effect of boron content on lymphocyte proliferation. (
  • IUPAC definition Artificial polymer: Man-made polymer that is not a biopolymer. (
  • Artificial polymer: Man-made polymer that is not a biopolymer . (
  • Accordingly, the synthetic high polymer according to this invention is highly suitable for the manufacture of contact lenses, artificial corneas, and optical lenses for medical use, for example, gonioscopes for examination of the eyes. (
  • Synthetic ice is sometimes called artificial ic. (
  • Analytical Pyrolysis of artificial natural Polymers is a follow-up to Analytical Pyrolysis of usual natural Polymers, that is quantity 20 of the sequence. (
  • In the early decade, chemists began to duplicate natural polymers , and build artificial polymers, starting with nylon that mimics silk in its strength and suppleness. (
  • artificial polymers are evolving with new rising technologies that have taken inspiration from different areas like biology, like self healing polymers that heal once injury is completed to that that area unit typically thought of irreversible, it's still in development and presents a challenge to provide it in massive scale. (
  • Thus, artificial polymers have become an integral part of our modern technological society. (
  • On the downside, most artificial polymers are not biodegradable, and factories and incineration furnaces often release chemical pollutants. (
  • Natural polymers have been chemically modified since the 1800s to produce the semi-synthetic polymers that heralded the birth of the synthetic polymer industry. (
  • The World Market for Paints, Varnishes, Enamels, and Lacquers Based on Synthetic Polymers or Chemically Modified Natural Polymers in an Aqueous Medium: A 2011 Global Trade Perspective. (
  • Several charts are presented which list data on the paints, varnishes, enamels, and lacquers based on synthetic polymers or chemically modified natural polymers in an aqueous medium market with data on exports and imports. (
  • Several tables and charts are presented which provide data on export and import market for paints, varnishes, enamels, and lacquers based on synthetic polymers or chemically modified natural polymers in an aqueous medium in African countries in 2011 including one on the world exporters' market. (
  • The 2011 Import and Export Market for Paints, Varnishes, Enamels, and Lacquers Based on Synthetic Polymers or Chemically Modified Natural Polymers in an Aqueous Medium in Latin America. (
  • 115 Pages Report] Synthetic Latex Polymers Market size was valued at USD 26.41 Billion in 2016 and is projected to reach USD 34.53 Billion by 2022, at a CAGR of 4.6% during the forecast period. (
  • 3. What Is China Synthetic Latex Polymer Market Forecast (2016-2021) Considering Sales, Revenue for Regions, Types and Applications? (
  • Covering the complex market of synthetic latex polymers since the 1970s, Kline published reports on Europe, CIS, and Brazil in 2015, North America and India in May 2016, and just released the China study from its continuous synthetic latex polymers program . (
  • In this Review, we summarize the mechanisms by which they decompose non-starch plant biomass and the six major types of synthetic plastics. (
  • BLC, we provide a wide scope of consumer product testing for plastics, synthetics and polymers. (
  • Established for 100 years' we have the technical pedigree in plastics, synthetics, and polymers testing, ensuring fast accurate support. (
  • According to a senior analyst at Technavio for research on plastics, polymers, and elastomers, "Natural polymers are non-toxic as they are carbohydrates in nature and composed of repeating monosaccharide units. (
  • This growth can be attributed to the increased demand for synthetic latex polymers in paints & coatings and replacement of solvent-based adhesives with water-based adhesives. (
  • Glove dipping is expected to be the fastest growing end-use application due to the growing demand for synthetic latex gloves globally. (
  • The example of polyethylene naphthalate and polyethylene terephthalate is relatively simple, as only the aromatic part of the polymers differ (naphthalate vs. terephthalate). (
  • Here we decipher the origin of fluorescence by studying the photophysical properties of a series of non-aromatic biogenic and synthetic peptides. (
  • The G- and S-type polymers (G- and S- type lignin model polymers) were synthesized using simple aromatic compounds as starting materials and then oxidised to benzaldehydes by reacting them with Co(salen) catalytic system. (
  • The value chain of the synthetic latex polymers market includes key manufacturers, such as BASF (Germany), Dow Chemical (US), Wacker Chemie (Germany), Celanese Corporation (US), Synthomer (UK), and OMNOVA Solutions (US). (
  • BASF is the leading supplier of synthetic latex polymers in China in terms of value, mainly due to its strong presence in the X-SB and styrene acrylics markets. (
  • This work presents our results in application of water soluble polymers in immunology-related areas: design of antigenic erythrocytic diagnosticums and adjuvants for production of hyperimmune serums. (
  • The synthetic polymer that the researchers call PolySTAT combines two biocompatible and water-soluble polymers that encourage the fibrin and platelet cells to coagulate. (
  • We will present a novel strategy that uses short and highly selective peptide motifs to enhance the deposition of polymers and polymer particles onto cotton and hair under conditions that are representative for the use of washing softeners and hair shampoos. (
  • Peptide/protein-synthetic polymer conjugates, which covalently combine one or more copies of a peptide sequence or protein with one or more synthetic polymer elements. (
  • offer unique possibilities to integrate the properties and functions of bio(macro)molecules and synthetic polymers in a single hybrid material This article provides a status report of the Field of peptide/protein-synthetic polymer conjugates Fust. (
  • the main synthetic strategies For the preparation of peptide/protein-synthetic polymer-conjugates will be discussed In the last two sections, selected properties and applications of peptide-synthetic polymer conjugates and protein-synthetic polymer conjugates will be highlighted. (
  • PolySTAT also includes a peptide that makes the polymer coagulate only with fibrin, and thus discourage formation of blood clots causing strokes or embolisms. (
  • Synthetic polymers are a mixture of macromolecules of different length and sequence and are analysed via statistical measures (e. g. the degree of polymerization, comonomer composition or dyad and triad fractions). (
  • Synthetic chemists have tried to recreate nature's exceptional control over macromolecules, and in so doing they have designed new materials with precisely defined structures, for use in applications ranging from materials to medicine. (
  • A recent review article ( 'Monodisperse macromolecules - A stepping stone to understanding industrial polymers' ), first-authored by Mykhaylyk, which discusses the structural aspects of what is happening in synthetic polymers under flow conditions provides more details about this. (
  • Scientists from the Fraunhofer Institute for Environmental, Safety and Energy Technology loaded microcapsules with the adhesive polyisobutylene, then put those capsules into synthetic caoutchouc sap elastomers. (
  • The idea was that when pressure was put on the elastomers to the point of cracking, the capsules would rupture and mix with the elastomers' polymer chains, thus sealing the cracks. (
  • In many applications, polymer materials interact with other polymer or non-polymer based materials. (
  • The book will be of great use to researchers and professionals whose work involves polymers and other synthetic materials. (
  • the nature of water, blending a variety of beneficial microorganisms grow quickly attached trace elements in polymer materials, through a special process modification, constructed, with more than large surf. (
  • Styrene and acrylics are major petrochemical raw materials for manufacturing synthetic based products. (
  • A concise and practical overview of the most important modern synthetic aspects of conjugated polymers and carbon materials, including their properties and applications. (
  • Consciousness of climate change mitigation and increasing costs of raw materials for energy production are set to shape the future of polymer production. (
  • While most materials have melting/freezing and boiling/condensing points, polymers do not boil because the energy necessary to put a polymer into the vapor state is greater than the bond energies of the atoms that hold the polymer together, thus they degrade prior to boiling. (
  • Working with members of his group and scientists from the Oxford Silk Group at University of Oxford, Dr. Mykhaylyk has published the team's findings in the November 23, 2011 online edition of Advanced Materials ( 'Silk and Synthetic Polymers: Reconciling 100 Degrees of Separation' ). (
  • Key to the team's observations was a recently developed, relatively simple tool based on a shear-induced polarized light imaging (SIPLI) technique to access flow parameters responsible for the flow-induced crystallization of polymers ( 'Time-resolved polarized light imaging of sheared materials: application to polymer crystallization' ). (
  • Synthetic polymers are significant importance in all aspects of modern life, and during the last few decades, these materials have facilitated major societal advances. (
  • however, taking advantage of the opportunities presented by these materials requires new methods for gaining precise control of polymer structure and function. (
  • To address this challenge, our research group focuses on the development of new synthetic methods and catalyst systems to control polymer architecture, composition, and function to yield next-generation materials. (
  • Moreover, the production cost of natural polymers is low as the raw materials are available at low prices. (
  • Ceramics, polymers and composites are typical categories of materials used in everyday life, transport and industry. (
  • It is important to be able to compare the physical properties of glass and clay ceramics, polymers, composites and metals and explain how the properties of materials are related to their uses and select appropriate materials. (
  • Polymer hydrogels are a rapidly developing group of materials, gaining wide application in different fields, such as pharmaceuticals, medicine, and agriculture. (
  • several chemical compound materials have chain-like structures that area unit kind of like synthetic resin. (
  • htm ctpropertiesrev3.shtml (
  • Polymers form a large, diverse group of materials. (
  • Thus, different strategies may be employed in creating antimicrobial films and designing antimicrobial packaging systems from synthetic polymers versus more natural materials as are used in edible and biodegradable films. (
  • Linear polymers are like ropes. (
  • Water-soluble linear polymers of both natural and synthetic origin are cross-linked to form hydrogels in a number of ways. (
  • Evolution of catalysis independent of any natural polymer has implications for the definition of chemical boundary conditions for the emergence of life on Earth and elsewhere in the Universe 9 . (
  • the main target of the ebook is on functional functions of analytical pyrolysis in man made natural polymer identity and characterization. (
  • From coatings to carpets to condoms, this conference provided the essential update on the latest trends and developments in natural rubber latex, aqueous synthetic polymer latices, processing chemicals and additives, latex-based products and relevant legislation. (
  • Natural polymers are produced through biological processes, whereas synthetic polymers are produced using chemicals processes. (
  • Now in its fifth year, the conference provided crucial updates on the latest trends and developments in natural latex, aqueous synthetic polymer latices, processing chemicals and additives. (
  • We've shown that our synthetic molecule binds to the immune cell, which in turn blocks the virus from attaching and entering. (
  • Additionally, the stabilizer is coreacted with the disperse polymer, each coreacted stabilizer molecule forming covalent links with the disperse polymer. (
  • 2. A process of making a stable dispersion according to claim 1 in which each coreacted stabilizer molecule forms from one to four covalent links with the disperse polymer. (
  • The emergence of catalysis in early genetic polymers such as RNA is considered a key transition in the origin of life 1 , pre-dating the appearance of protein enzymes. (
  • The ability of synthetic genetic polymers (XNAs) with alternative backbone chemistries not found in nature to fold into defined structures and bind ligands 4 raises the possibility that these too might be capable of forming catalysts (XNAzymes). (
  • Synthetic genetic polymers capable of heredity and evolution. (
  • Pinheiro, V. B. & Holliger, P. The XNA world: progress towards replication and evolution of synthetic genetic polymers. (
  • The reduction of the amount of nylon and the composition of the liquid phase indicated that part of the polymer was degraded into soluble products. (
  • This invention relates to a synthetic polymer composition stabilized against photo- and thermal deterioration thereof which comprises a 1-substituted piperidine derivative. (
  • Accordingly, this invention is to provide a synthetic polymer composition stabilized against light and heat by having incorporated therein at least one of the 1-substituted piperidine derivatives having the following formula (I) in a sufficient amount to prevent such deterioration. (
  • Both polymer composition and initial cell seeding density affected cell growth. (
  • However, these compounds are easily volatilized from the polymer composition at elevated temperature, such as during processing, and are also extracted by water. (
  • Synthetic polymers having hydrogen bonding capability and one or more aliphatic hydrocarbon moieties are capable of providing two distinct properties to paper products, such as tissues, which properties heretofore have been imparted through the use of at least two different molecules. (
  • An international team is trying to head this off with synthetic molecules to treat multiple superbugs. (
  • The physical characteristics and behaviours of polymers are strongly influenced by the properties of the polymer molecules of which they are constituted. (
  • Polymers are large molecules composed of repeated chemical units. (
  • This technique enabled us to make an important step from a phenomenological description of polymer fibrillation towards a quantification of the process and, subsequently, a relation of the measured flow parameters - such as shear rate, time of shearing and strain - to the physical parameters of polymer molecules - such as relaxation time. (
  • Generally the TEGDMA-based polymers had stronger affinity than the TRIM-based polymers, although the TRIM-based polymer adsorbed steroidal hormones with two hydroxyl groups, for example 17 α -estradiol and 17 β -estradiol, more strongly than the TEGDMA-based polymer, meaning that the crosslinkers affected the properties of the binding sites and, depending upon the target molecules, suitable crosslinkers should be chosen in this system. (
  • A polymer (from the Greek words polys, meaning "many," and meros, meaning "parts" [1] ) is a chemical compound consisting of large molecules , each of which is a long chain made up of small structural units that are linked together by covalent chemical bonds . (
  • Thus the molecules of a polymer can have various topologies (shapes), such as linear (unbranched), branched, network (cross-linked 3-dimensional structure), comb, or star. (
  • Most thermoplastics are polymers whose molecules have linear or branched structures. (
  • Chemists, meanwhile, have become increasingly interested in "self-healing" polymers. (
  • Chemical engineer Zhenan Bao of Stanford University in Palo Alto, California, and her team combined these two concepts and explored the potential of self-healing polymers in epidermal electronics. (
  • However, all the self-healing polymers demonstrated to date had had very low bulk electrical conductivities and would have been little use in electrical sensors. (
  • Thus, heredity and evolution, two hallmarks of life, are not limited to DNA and RNA but are likely to be emergent properties of polymers capable of information storage. (
  • according to a new research report by Global Market Insights, Inc. Positive application outlook in adhesives, paints & coatings and paper & paper board coatings industry may stimulate market emulsion polymer market growth. (
  • While in most regional markets paints and coatings is the largest consumer of synthetic latex polymers, adhesives and sealants is the largest end use application in China," notes Shilpi Mehrotra, the project's lead. (
  • Microorganisms harvest energy from plant material by means of complex enzymatic systems that efficiently degrade natural polymers. (
  • Intriguingly, microorganisms have evolved to exploit these ancient mechanisms to also decompose synthetic plastic polymers. (
  • Microorganisms colonize the polymer surface and secrete extracellular enzymes that depolymerize the polymer. (
  • 1 Since then, the industry has continued to evolve delivering a progressively broader range of commodity and specialty polymers that are vital to everyday life. (
  • Biodegradability of Poly(Vinyl Acetate) and Related Polymers, by Manfred Amann and Oliver Minge. (
  • The back bones of common synthetic polymers such as polythene, polystyrene and poly acrylates are made up of carbon-carbon bonds, whereas hetero chain polymers such as polyamides, polyesters, polyurethanes, polysulfides and polycarbonates have other elements (e.g. oxygen, sulfur, nitrogen) inserted along to the backbone. (
  • Synthetic biodegradable poly(DL-lactic-co-glycolic acid) (PLGA) has been fabricated into thin films for use as scaffolds for cell transplantation and guided tissue regeneration. (
  • The term polymer is derived from the Greek words poly and mers meaning 'many parts. (
  • For (poly)propylene (shown in Figure 1) the repeating carbons (C-C-C-C-C-C-C) form the polymer backbone and represent the atoms that connect the chain together. (
  • Lectin-like function was demonstrated in this study for a novel water-soluble polymer with phenylboronic acid residues (poly (AAPBA-DMAm)), which induced appreciable proliferation of murine spleen lymphocytes with an increased expression of interleukin-2 (IL-2) receptor on their surface. (
  • Coordination polymers may contain a range of metals in the backbone, with non-covalent bonding present. (
  • 2) Mechanochemistry at polymer interfaces: It has been known for a long time that, for example, mastication, ultrasound or high shear forces can lead to scission of covalent bonds. (
  • The distinguishing feature of the used polymers is their ability to give target products without covalent bonding with antigens. (
  • To date, the documented covalent coupling of a polypeptide to a polymer has occurred under circumstances in which the polypeptide was provided in soluble form and the polymerwas provided as a preformed soluble or insoluble polymer material. (
  • 3. A process of making a stable dispersion according to claim 1 in which the covalent links between stabilizer and disperse polymer are formed by coreaction between chemical groups provided by the stabilizer and complementary chemical groups provided by the disperse polymer. (
  • Accounting for almost 25% of the global market share, China is the second largest consumer of synthetic latex polymers after North America, according to the just-published China report from Kline's continuous program Synthetic Latex Polymers: Global Business Analysis and Opportunities . (
  • However, synthetic chiral polymers for this purpose have not been designed so far. (
  • A research team in the Department of Environmental and Life Science at Toyohashi University of Technology has investigated a novel synthetic method for preparing chiral polymers containing repeating units of cinchona sulfonamide. (
  • Lead author Shohei Takata said, "After testing many reaction conditions for the polymerization, we have synthesized chiral polymers containing cinchona sulfonamide repeating units. (
  • Chiral polymers are easily prepared by the method we established. (
  • Moreover, our chiral polymers showed high catalytic activity in asymmetric reactions. (
  • Various kinds of such chiral polymers may be synthesized using this newly developed methodology to obtain various types of synthetic enzymes for specific reactions. (
  • Shinichi Itsuno and his colleagues have successfully synthesized chiral polymers containing a cinchona alkaloid sulfonamide derivative as a repeating unit. (
  • This is the first example of a chiral polymer of cinchona sulfonamide, which shows high catalytic activity in the enantioselective desymmetrization of cyclic anhydrides. (
  • Efficient asymmetric Baeyer-Villiger oxidation of prochiral cyclobutanones using new polymer-supported and unsupported chiral Co(salen) complexes. (
  • Characterization using NMR, IR, elemental analyses and intrinsic viscosity supported the chemical structure assignments to monomer and polymer. (
  • Pyrolysis - GC/MS Data Book of Synthetic Polymers Edition by Shin Tsuge and Publisher Elsevier (S&T). Save up to 80% by choosing the eTextbook option for ISBN: 9780444538932. (
  • The moment half systematically covers the analytical pyrolysis of varied periods of man-made polymers. (
  • a few theoretical history for the certainty of polymer constitution utilizing analytical pyrolysis is usually discussed. (
  • The synthetic high polymer according to this invention is very hydrophilic and sticky, and endures a very precise machining operation. (
  • Eurolast will give an exclusive preview of the Nerino G fibre, a hydrophilic fibre combining the characteristics of the synthetic fibres with unique properties of the natural fibres, which was introduced by joint developers Invista and Golden Lady. (
  • The common PET bottles are made of a synthetic polymer, polyethylene terephthalate. (
  • In an effort to mimic the above phenomenon, we have used a variety of neutral or cationic polymers that stabilize two soluble forms of "Si," silicic and disilicic acids. (
  • Synergistic combinations of cationic and anionic polymers create in situ supramolecular assemblies that can also affect the condensation of silicic acid. (
  • Thus, the purpose of this research is to study the effect of six cationic polymers, applied in the plant, on RO membrane performance. (
  • The structure of cinchona sulfonamide polymer. (
  • We have found that Mizoroki-Heck coupling was successful in synthesizing cinchona sulfonamide polymers," explains project leader Shinichi Itsuno. (
  • The Synthetic Polymer report provides the past, present and future Synthetic Polymer industry Size, trends and the forecast information related to the expected Synthetic Polymer sales revenue, growth, Synthetic Polymer demand and supply scenario. (
  • The deep research study of Synthetic Polymer market based on development opportunities, growth limiting factors and feasibility of investment will forecast the market growth. (
  • Top-down and bottom-up approaches were used to estimate and forecast the size of the synthetic latex polymers market and estimate the size of various other dependent submarkets. (
  • In this thesis, polymerisation techniques or deposition methods have been developed permitting the creation of thin molecularly imprinted polymer (MIP) films or patterns and their interfacing with transducer surfaces for biosensor applications. (
  • Sellergren B (2001) (ed) Molecularly imprinted polymers. (
  • The scientists are now looking for pharma partnerships to develop the polymers into an antimicrobial treatment. (
  • Fig. 3: The structures of polysaccharide-based plant polymers. (
  • Fig. 6: Backbone structures of the most widely produced synthetic polymers. (
  • Regular structures with little or no branching allow the polymer chains to fit close together, forming a crystalline structure. (
  • wood is a natural composite of cellulose fibres strongly held together by a polymer matrix chemically derived from cross-linked cellulose structures (similar in this respect to man-made thermosetting resin). (
  • The backbone of these synthetic polymers is based on modified vinyl polymers, such as polyvinyl alcohol, polyacrylamides and polyacrylic acids. (
  • Some linear chains have extensions (beyond the substitution) coming off the polymer backbone. (
  • Here, we show that synthetic heteropolymers, once constrained onto a single-walled carbon nanotube by chem. (
  • The results obtained by the FTIR and C-13 NMR showed that the effects of NaOH were important and higher yield of benzaldehydes characterized by GC-MS in the presence of NaOH in the course of catalytic oxidation of the polymer demonstrated these effects. (
  • In addition, our experience of different synthetic and natural material testing means that we ensure the appropriate test methods are used at all times. (
  • NOTE When they are not the subject of an existing International Standard, the test methods to be used for investigation of an individual polymer dispersion or latex are intended to be the subject of an agreement between the interested parties. (
  • This Rapra Natural and Synthetic Latex Polymers Market Report provides an excellent, clear overview of the whole of the latex industry from production and manufacturing methods to market applications, new technology and potential for growth. (