Field flow fractionCharacterizationChemistryProteinsAmphiphilic block copolymersSynthesisBiodegradablePyrolysisBiomassSolventsCopolymersMoleculesWater solubleChromatographyAnalytical2073-4360AdditivesFeedstocksNatural polymerSeparationPolymerisationMolecularThermodynamicsMonomersInteractionsExtractionBlendsFractionsChromatographicThermalContinuousAnalysisColloidsCatalysisCarbohydrateFlowOxidationMechanismsScienceApplicationsCompositeSyntheticSteamComplexesResearchTechniques
Field flow fraction12
- Polymers can be fractionated on an analytical scale by size exclusion chromatography (SEC), Matrix-assisted laser desorption/ionization (MALDI) or field flow fractionation (FFF). (wikipedia.org)
- We investigated the formation of the PECs using ζ-potential, asymmetric flow field-flow fractionation (AF4) coupled with multiangle light scattering (MALS), refractive index (RI), ultraviolet (UV) and dynamic light scattering (DLS) detectors, and TEM imaging. (whiterose.ac.uk)
- Please join us for an educational webcast on field flow fractionation! (chromatographyonline.com)
- Field-flow fractionation (FFF) is a high-resolution separation technique that can separate and characterize analytes ranging in size from a few nanometers to the low micrometer range. (chromatographyonline.com)
- Thermal field-flow fractionation and the advanced analysis of complex polymers. (sun.ac.za)
- Novel characterization of decorative coatings using field-flow fractionation and a multi-detector approach. (sun.ac.za)
- Field-flow fractionation of amphiphilic block copolymers. (sun.ac.za)
- Characterization of water-soluble polymers and aqueous colloids with asymmetrical flow field-flow fractionation. (mpg.de)
- Applications of asymmetrical flow field-flow fractionation (AF4) continue to expand rapidly in the fields of nanotechnology and biotechnology. (nist.gov)
- It was the aim of this thesis to evaluate the applicability of asymmetrical flow field flow fractionation (AF4) in pharmaceutical protein analytics, to compare AF4 performance with established state-of-the-art methods and to reveal the effectivity of inherent AF4 characteristics in demanding analytical tasks. (uni-muenchen.de)
- The Theoretical Section encompasses Chapter 2, wherein the family of field-flow fractionation techniques is introduced, as well as Chapter 3 (attending to protein aggregation) and Chapter 4, which provides an insight into multi-angle light scattering. (uni-muenchen.de)
- Importantly, the field-flow fractionation (FFF) strategy has lately emerged as a well-liked supplement to measurement exclusion chromatography for protein prescribed drugs. (eauxdubrivadois.fr)
Characterization4
- These results suggest that combining size-separation and microscopy (imaging) techniques could provide a holistic view of glycogen size distribution and morphology, which may also be applicable to the characterization of other complex branched polymers. (lu.se)
- the main target of the e-book is on functional purposes of analytical pyrolysis in man made natural polymer id and characterization. (eauxdubrivadois.fr)
- The first a part of the publication has 5 chapters together with an advent, a dialogue on physico-chemistry of thermal degradation of artificial polymers and on instrumentation utilized in analytical pyrolysis, a bankruptcy discussing what form of details could be got from analytical pyrolysis, and a bankruptcy devoted to the research and characterization of man-made polymers. (eauxdubrivadois.fr)
- Fractionation and chemical characterization studies on Micropolyspora faeni antigens. (cdc.gov)
Chemistry3
- Chemistry) Synthesis polymer-bound small-molecule kinase inhibitors as anti-tumour agents. (sun.ac.za)
- Novel nano-cellulose based nano-structures modified with hyper-branched polymers were prepared by using isocyanate linking chemistry. (4spe.org)
- Mamdouh A. Al-Harthi , L.Cheng, J. Soares, L. Simon ' Atom-Transfer Radical Polymerization of Styrene with Bifunctional and Monofunctional Initiators: Experimental and Mathematical Modeling Results ' Journal of Polymer Science, Part A: Polymer Chemistry , 45(11), 2212, (2007). (edu.sa)
Proteins4
- With a few exceptions such as proteins, a polymer consists of a mix of molecules with different chain lengths. (wikipedia.org)
- In particular, AF4 has proven valuable for the separation and analysis of particles, biomolecular species (e.g., proteins, viruses) and polymers (natural and synthetic), ranging in size from a few nanometers to several micrometers. (nist.gov)
- Summary, conclusions and prospective 177 Given the background that effective AF4 fractionations are due to differences in analyte size - i.e., in diffusion coefficients -, the separation of equal-sized proteins is prima facie considered to be impractical. (uni-muenchen.de)
- Yet, the retaining impact of sample-membrane interaction was evidenced to decrease the effective diffusion coefficient, resulting in successful fractionations of proteins differing ~1% in size (i.e. (uni-muenchen.de)
Amphiphilic block copolymers1
- Novel amphiphilic block copolymers by polymer reactions and their use for solubilization of metal salts and metal colloids. (mpg.de)
Synthesis2
- Synthesis of sponge-like polymer dispersions via polymerization of bicontinuous microemulsions. (mpg.de)
- Selection for high water-soluble carbohydrate content was associated with increased synthesis of large fructan polymers and increased accumulation of above-ground plant biomass, particularly during spring. (aber.ac.uk)
Biodegradable1
- The objective of this study was therefore to develop a procedure to produce MPs and NPs from agricultural plastics (a mulch film prepared biodegradable polymer polybutyrate adipate-co-terephthalate (PBAT) and low-density PE [LDPE]), and to characterize the resultant materials. (tennessee.edu)
Pyrolysis5
- This technique is extremely powerful for the analysis and characterisation of polymers and is often based on the use of controlled chromatography - mass spectroscopy to measure a polymer's decomposition with techniques such as pyrolysis, followed by chromatography to separate any breakdown product, and, finally, mass spectroscopy, to achieve an unequivocal identification of the pyrolysis products obtained. (chemtec.org)
- Pyrolysis chromatography-mass spectroscopy is a method of studying the structure of polymers which involves subjecting the polymer pyrolysis products to a chromatographic technique to simplify subsequent analysis and, finally mass spectroscopy to identify the pyrolysis products with the possibility of deducing finer details of polymer structure than were previously attainable by classical methods (Chapters 9-11). (chemtec.org)
- Analytical Pyrolysis of artificial natural Polymers is a follow-up to Analytical Pyrolysis of typical natural Polymers, that's quantity 20 of the sequence. (eauxdubrivadois.fr)
- The moment half systematically covers the analytical pyrolysis of varied periods of artificial polymers. (eauxdubrivadois.fr)
- a few theoretical historical past for the certainty of polymer constitution utilizing analytical pyrolysis can be discussed. (eauxdubrivadois.fr)
Biomass1
- This sequence of two catalytic reactions demonstrates that the production of epoxides from lignin-derived DMPPO is a realistic strategy for making renewable polymer building blocks from biomass. (rsc.org)
Solvents2
- A water soluble polymer is a polymer that can be diluted in water, with or without the assistance of co solvents and neutralizing agents, to form transparent solutions. (niir.org)
- In some cases, di-n-butyl phthalate in water may be separated without solvents by adsorption onto a suitable polymer such as Tenax (Pankow et al. (cdc.gov)
Copolymers2
- The detail that can be obtained by such methods includes structure of the polymer backbone, branching, end groups, isomeric detail and fine detail in the structure of copolymers. (chemtec.org)
- The second section of the work involved the thermal degradation of these polymers and copolymers. (gla.ac.uk)
Molecules3
- Polymers are chainlike molecules that are made of the same repetition unit. (wikipedia.org)
- TGIC will adsorb polymer molecules by the level of molecular surface in contact with the surface of the adsorbent, thus it may discriminate polymers by the level of irregularities in the chain, in a similar approach to crystallization techniques. (polymerchar.com)
- A methodology for chemically synthesizing polymer molds of specific molecules or recognition sites of specific molecules. (bvsalud.org)
Water soluble5
- Water soluble polymers cover a wide range of highly varied families of products of natural or synthetic origin, and have numerous uses. (niir.org)
- There are various types of polymerization methods of water soluble polymers such as bulk polymerization, solution polymerization, copolymerization, emulsion polymerization and suspension polymerization. (niir.org)
- Water soluble polymers are used widely as stabilizers or protective colloids in emulsion polymerization. (niir.org)
- The water soluble polymers market encompasses several categories, including starch, cellulose ethers, polyvinylacetate, polyvinyl alcohol and other synthetic water soluble polymers. (niir.org)
- The book covers classification of water soluble polymers, processes, properties, uses and applications of water soluble polymers with lot of other information. (niir.org)
Chromatography1
- The combination of chromatography with mass spectroscopy is a very useful technique which is being increasingly used by polymer chemists to improve existing polymers and to discover new ones with specific physical properties such as thermal stability and retention of properties over a long service life. (chemtec.org)
Analytical1
- The IR4 is the standard Detector integrated by default in all the Polymer Char analytical instruments. (polymerchar.com)
Additives1
- Most common method of fire retarding the resin and hence, the overall composite is the physical and chemical modification of the resin by either adding fire retardant elements in the polymer backbone or using fire retardant additives in the resin. (southampton.ac.uk)
Feedstocks1
- OrganoCat pretreatment of perennial plants: Synergies between a biogenic fractionation and valuable feedstocks. (biosc.de)
Natural polymer1
- During the past year, interest in this natural polymer has grown exponentially abroad because of its great potential and thanks to the development of new fractionation and refining techniques which hitherto were available only on a laboratory scale. (unive.it)
Separation2
- Due to the AF4 feature to discretionarily alter the resolution power within one separation run, the fractionation of higherorder aggregates and insoluble, precipitated protein was successfully performed. (uni-muenchen.de)
- Whereas theoretical predictions of macromolec- use of nonadsorbing polymers, like polyethylene glycol, for ular crowding effects abound, there are remarkably few protein separation (Albertsson, 1986) and crystallization experimental studies of this universal phenomenon. (lu.se)
Polymerisation3
- Investigation of living radical polymerisation mechanisms by advanced fractionation methods. (sun.ac.za)
- The polymers were prepared by polymerisation of metal acrylate monomer and neutralisation of poly(acrylic acid) by the appropriate metal salt. (gla.ac.uk)
- Cu. The polymers made by neutralisation of poly(acrylic acid) and those made by polymerisation of metal acrylate monomer exhibited similar thermal stability and degradation characteristics. (gla.ac.uk)
Molecular6
- The targeted manipulation of the molecular weight distribution of a polymer by removing short and/or long chain material is called polymer fractionation. (wikipedia.org)
- The molecular weight of polymers has a large influence on their properties and therefore determines the applications. (wikipedia.org)
- For high duty polymers - polymers that have to fulfill elevated demands - not only the molecular weight but also the molecular weight distribution is important. (wikipedia.org)
- It consists of hydrocarbons having carbon number predominantly in the range of C10 to low molecular weight polymers. (europa.eu)
- This study suggests that MPs form from cutting and high-impact mechanical degradation as would occur during the tillage into soil, and that NPs form from the MP fragments in regions of relative weakness that possess lower molecular weight polymers and crystallinity. (tennessee.edu)
- Las aplicaciones para POLÍMEROS DE IMPRONTA MOLECULAR (en inglés, MIP) comprenden las separaciones, los ensayos y biosensores y la catálisis. (bvsalud.org)
Thermodynamics1
- His lectures focuse mainly on the thermodynamics of polymer solutions. (wee-solve.de)
Monomers1
- Notably, direct reductive catalytic fractionation (RCF) of the high-S poplar wood over Pd-Zn/C catalyst with Pd : Zn ratio 1 : 10 at 225 °C under 35 bar H 2 in methanol gave the highest yield of biophenol monomers from the lignin present, the major product being DMPP. (rsc.org)
Interactions1
- The analysis of these results, in terms of a statistical-mechanical model that incorporates polymer flexibility as well as the excluded volume of the protein, shows that the dramatic enhancement of bovine pancreatic trypsin inhibitor self-association can be quantitatively rationalized in terms of hard repulsive interactions. (lu.se)
Extraction1
- CDS Empore 6093 StageTips SDB-XC (styrenedivinyl benzene) polymer sorbent Solid phase extraction micropipette tips 2-layers for increased capacity. (thomassci.com)
Blends1
- Here, polymer blends containing 0-4wt% talc, a crystal nucleating agent and 0-1 wt% of a polymeric carbodiimide (CDI), an anti-hydrolysis agent, were melt blended and compression molded into plaques. (4spe.org)
Fractions1
- LDPE and cryogenically treated PBAT underwent mechanical milling followed by sieve fractionation into MP fractions of 840 μm, 250 μm, 106 μm, and 45 μm. (tennessee.edu)
Chromatographic1
- In most cases the fractionation of polymers on a preparative scale is based on chromatographic methods (e.g. preparative SEC or Baker-Williams fractionation). (wikipedia.org)
Thermal1
Continuous2
- For large scales of several grams up to kg or even tons the "continuous spin fractionation" can be used. (wikipedia.org)
- Continuous cycle fractionation is extremely flexible and can be modulated according to the type of product to be obtained. (unive.it)
Analysis2
- Development of advanced methods for the analysis of star and highly branched polymers. (sun.ac.za)
- Cell wall/lignocellulose composition analysis of the different plants at varying harvesting time points and grown under ideal to non-ideal soil conditions resulted in a database showing the variety of different compositions, which then could be used to enhance fractionation by the OrganoCat technology. (biosc.de)
Colloids1
- Swelling equilibrium of small polymer colloids: Influence of surface structure and a size-dependent depletion correction. (mpg.de)
Catalysis1
- Applications for MOLECULARLY IMPRINTED POLYMERS (MIPs) include separations, assays and biosensors, and catalysis. (bvsalud.org)
Flow1
- This new process is called segmented flow fractionation . (unive.it)
Oxidation1
Mechanisms1
- Mechanisms of polymer degradation are discussed with respect to the degradation products obtained during TVA. (gla.ac.uk)
Science2
- Degrees were awarded in Polymer Science, except where stated differently. (sun.ac.za)
- Spanning almost two decades, this collection of published research and development work in polymer science and plastics technology is a wealth of knowledge and information for anyone involved in plastics. (4spe.org)
Applications1
Composite1
- Besides challenges like food and feed competing for arable land, the efficient pre-treatment and fractionation of the composite material lignocellulose has to be addressed. (biosc.de)
Steam2
Complexes1
Research1
- By providing a thorough up-to-date review of work in this field it is hoped that the book will be of interest to all those engaged in polymer research and development, and polymer users in general. (chemtec.org)
Techniques1
- Resolution in TGIC is lower than in crystallization techniques but it has the possibility to extend the range of polymers to be analyzed towards the amorphous region which is limited by crystallization techniques. (polymerchar.com)