• This dissertation describes the synthesis, characterization, and investigation of novel zwitterionic polymers containing phosphorylcholine (PC), sulfobetaine (SB), and functional choline phosphate (CP) zwitterions for use as surfactants, self-assembled nanomaterials, and therapeutics. (umass.edu)
  • A protocol for the synthesis and characterization of diffusive motion of cyclic polymers at the single molecule level is presented. (jove.com)
  • In order to characterize molecular level dynamics of cyclic polymers, a synthesis method that provides high purity cyclic polymers and an experimental and analysis methods that allow for quantitative characterization of molecular motion at the single molecule level have to be developed. (jove.com)
  • Synthesis and Characterization of a Novel Physically Cross-Linked Gel Polymer Electrolyte[J]. Acta Phys. (pku.edu.cn)
  • Wooley, Karen L. / Synthesis, characterization, and derivatization of hyperbranched polyfluorinated polymers . (cmich.edu)
  • The design, synthesis and structural characterization of lipid coordination polymers with DNA-delivery properties was carried out. (utep.edu)
  • The Chemistry and Biochemistry Polymer Synthesis Research Facility is located on the fourth floor northeast corner of Evans Laboratory in room 4073. (ohio-state.edu)
  • The research result is a collaborative work of several groups at TU Dresden and Ulm University and was published this week in two related articles in the scientific journals Nature Chemistry ( 'On-water surface synthesis of crystalline two-dimensional polymers assisted by surfactant monolayers' ) and Nature Communications ( 'Engineering Crystalline Quasi-Two-Dimensional Polyaniline Thin Film with Enhanced Electrical and Chemiresistive Sensing Performances' ). (nanowerk.com)
  • However, despite the tremendous developments in synthetic chemistry over the last century, the bottom-up synthesis of 2D polymers with defined structures remains a formidable task. (nanowerk.com)
  • The power and flexibility of organic and polymer chemistry are used here to create fully conjugated, electroactive organic polymers. (caltech.edu)
  • In a second effort, we describe an improved precursor polymer route to polyparaphenylene (PPP) based upon the ring-opening metathesis polymerization (ROMP) chemistry of cis-di(3,4- dihydroxymethyl)cyclobutene dicarbonate. (caltech.edu)
  • The synthesis of very small diamond particles, so-called nanodiamonds, with precisely localized lattice defects and controlled morphologies, remains of great challenge in synthetic chemistry and materials design. (mpg.de)
  • Polymer science and technology concerns the chemistry and physics of polymers, polymer processing and applications of polymer materials, as well as environmental aspects of polymer materials. (lu.se)
  • The goal of the project is to make biodegradable polymers for stain removal. (iamexpat.nl)
  • As another significant material, biodegradable polymers, which are decomposed into CO 2 and H 2 O in nature by microorganisms, have been widely researched all over the world, with some studies focusing on marine decomposed polymers to solve the problem of micro-plastics in the ocean. (mdpi.com)
  • After an introduction to the project from Prof. Gianluca Ciardelli, a full room heard three excellent presentations on biodegradable polymers synthesis and functionalisation. (hymedpoly.eu)
  • A review of biodegradable polymers and the features affecting their properties, which focuses on the chemical synthesis of biodegradable polyesters and polyurethanes. (hymedpoly.eu)
  • abstract = "We present a detailed systematic study of the synthesis and ability of fluorinated 2-phenyl-2-oxazolines to undergo polymerization. (tue.nl)
  • abstract = "Electrochromic polymers have attracted considerable attention mainly because of their potential applications in the fields of smart windows, intelligent displays and advanced devices. (edu.au)
  • European Polymer Journal , 111 , 43-48. (edu.au)
  • Through the copolymerization of PC- and CP-methacrylate monomers, functional mimics of conventional Pluronic structures became amenable to crosslinking and the successful synthesis of nanomaterials and robust gels. (umass.edu)
  • Given the enormous chemical and structural diversity of the building blocks (i.e., monomers), 2D polymers hold great promise in the rational material design tailored for next-generation applications, such as membrane separation, electronics, optical devices, energy storage and conversion, etc. (nanowerk.com)
  • The task of the post-doc is to synthesize monomers and polymers with stain removal activity. (iamexpat.nl)
  • Structural identification of the monomers and polymer is performed using FTIR and 1 H NMR spectroscopy. (edu.au)
  • Polymers are macromolecules that are made out of small basic units called monomers . (pediaa.com)
  • A polymer is a macromolecule made out of a large number of small units called monomers. (pediaa.com)
  • In the process of polymerization, monomers are linked to each other forming a polymer chain. (pediaa.com)
  • If different types of monomers are used, then the resulting polymer is a heteropolymer . (pediaa.com)
  • Their chemical and physical properties may vary according to the type of monomers involved in the process of polymerization and the synthesis of polymers. (pediaa.com)
  • Within the subject area we carry out research on new synthetic pathways to functional monomers and polymers, fundamental structure-property relationships of polymers, polymers from renewable resources, methods to recycle of polymer materials, as well as ion conducting polymers and membranes for energy applications. (lu.se)
  • Herein, we have synthesized amphiphilic copolymers by grafting hydrophobic alkyl/perfluoroalkyl chains and hydrophilic polyglycerol [G2.0] dendrons onto a co-polymer scaffold, which itself was prepared by enzymatic polymerization of poly[ethylene glycol bis(carboxymethyl) ether]diethylester and 2-azidopropan-1,3-diol. (fu-berlin.de)
  • Telechelic polymers is important in the preparation of block copolymers acting as building blocks for the structural design of these copolymers. (wikipedia.org)
  • Facile, reproducible, and modular chemistries were utilized for incorporating zwitterions into a range of polymer backbones, and strategies were developed for overcoming difficult challenges encountered in zwitterionic polymer synthesis, especially related to the varying solubility of zwitterions, hydrophobic polymers, and functional comonomers. (umass.edu)
  • The synthesis of 2D CPs with fully vinylene-linked backbones still lacks effective protocols to generate crystalline polymer materials. (tu-dresden.de)
  • Ring-opening metathesis polymerization (ROMP) remains a valuable tool in polymer synthesis because it affords structurally well-defined, functionalized materials with highly unsaturated polymer backbones. (caltech.edu)
  • Here we report an aldol polymerisation scheme that circumvents cross coupling and links repeat units with carbon−carbon double bonds, in contrast to the single bond links in all conjugated polymer backbones prepared in the literature to date. (nature.com)
  • Ever since Hermann Staudinger discovered the linear polymers in 1920, it has been a dream of synthetic scientists to extend the polymerization into the second dimension. (nanowerk.com)
  • A series of electroactive poly(norbornadienebenzoquinone-imine) and poly(norbornadienebenzoquinone) polymers have been synthesized by the ring-opening metathesis polymerization (ROMP) of functionalized bicyclo[2.2.1]hepta-2,5-dienes using alkylidene metathesis catalysts. (caltech.edu)
  • To test the claims and postulates of the Topological Coupling Model, an organic-based ferromagnetic polymer was designed around the ring-opening metathesis polymerization (ROMP) of 3-diphenylmethylenecyclobutene. (caltech.edu)
  • Preparation of graft and branched polymers via photo-induced radical polymerization and photo-induced self-condensing vinyl polymerization (SCVP) routes, respectively, was studied. (itu.edu.tr)
  • Precursor random co-polymers of styrene (St) and 2-(dimethylamino)ethyl methacrylate (DAEMA) were obtained via thermal polymerization initiated by azoisobutyronitrile, (AIBN) and used as macromolecular co-initiators in photo-induced grafting experiments. (itu.edu.tr)
  • A physically cross-linked gel polymer electrolyte (GPE) was obtained by photo-induced radical polymerization of a mixture of methoxy-poly(ethylene glycol) methacrylate (MPEGM), hexadecal-poly (ethylene glycol) methacrylate (HPEGM), triethylene glycol dimethyl ether (TEGDME), lithium salt (lithium perchlorate, LiClO 4 ) and photo-initiator (2, 2-Dimethoxy-2-phenylacetophenone, DMPA). (pku.edu.cn)
  • The aim of PhD project is the synthesis of new metal catalysts active in the polymerization of polar monomer and α-olefins. (123dok.org)
  • The molecular weight and molecular-weight distribution of the resulting polymer were affected by the surface area of the sodium particles, the concentration of the monomer, and the polymerization temperature. (cmich.edu)
  • A polymer is formed through a process called polymerization . (pediaa.com)
  • A telechelic polymer or oligomer is a prepolymer capable of entering into further polymerization or other reactions through its reactive end-groups. (wikipedia.org)
  • All polymers resulting from living polymerization are end-functional but may not necessarily be telechelic. (wikipedia.org)
  • To prepare polymers by step-growth polymerization, telechelic polymers like polymeric diols and epoxy prepolymers can be used. (wikipedia.org)
  • Telechelic polymers can be synthesized by different polymerization mechanisms. (wikipedia.org)
  • The molecularly imprinted polymers for gallic acid were synthesized by precipitation polymerization. (biomedcentral.com)
  • The imprinted polymers produced from the polymerization process have cavities that can complement to the shape of the desired molecules. (biomedcentral.com)
  • While covalent imprinting is less economical and usually troublesome, in this research, all polymers were synthesized by non-covalent approach by precipitation polymerization method. (biomedcentral.com)
  • The resulting polymers and gel polymer electrolytes were characterized by infrared spectroscopy (IR), differential scanning calorimetry (DSC), tensile test, and alternating current (AC) impedance measurements. (pku.edu.cn)
  • Successful polyester syntheses were confirmed using 1 H-NMR spectroscopy. (aiche.org)
  • The synthesized imprinted and non-imprinted polymer particles were characterized by using Fourier-transform infrared spectroscopy and scanning electron microscopy. (biomedcentral.com)
  • Finally, the thermal response for ethylene glycol methyl ether methacrylate polymer brushes anchored to polystyrene particles was investigated. (bl.uk)
  • The rebinding efficiency of synthesized polymer particles was evaluated by batch binding assay. (biomedcentral.com)
  • Experiments: In this work, we specifically synthesize poly (ethylene glycol) (PEG) chains, grafted onto poly(styrene) (PS) particles in aqueous solution, and adjust the conditions so that strongly anisotropic and isolated polymer-like clusters are formed. (lu.se)
  • These adverse health effects were associated with the presence of nanoscale particles comprised of decomposition products, including polymers, in the fumes, which can reach deep into the lung and access the pulmonary interstitium [12]. (cdc.gov)
  • The chemists and polymer engineers at the Centre for Analysis and Synthesis are responsible for assembling the building blocks needed to create polymer. (lu.se)
  • A crystalline polymer has a well-organized structure whereas amorphous polymers do not have an organized structure. (pediaa.com)
  • Results gathered for this system show that the presence of a dynamic monomer density along the length of a polymer chain gave rise to a complex interplay of forces. (bl.uk)
  • Doping, the generation of charged species along the polymer, generates a radical spin (1/2) on every monomer unit in the polymer chain, resulting in a fully conjugated polybutenamer polymer with active spin centers every five (5) carbons apart. (caltech.edu)
  • Due to its unique complex natural structure, betulin is also being studied as a bio-based monomer for preparing synthetic polymers. (aiche.org)
  • A hyperbranched polyfluorinated benzyl ether polymer was prepared from the A 2 B monomer 3,5-bis[(pentafluorobenzyl)oxy]benzyl alcohol. (cmich.edu)
  • The main parameter that can be used for this classification is the type of monomer used in the production of the polymer. (pediaa.com)
  • If the same type of monomer is used, then the resulting polymer is a homopolymer . (pediaa.com)
  • During the process of synthesis a non-covalent approach was used for the interaction of template and monomer. (biomedcentral.com)
  • The highly selective imprinted polymer for gallic acid was MIPI1 with a composition (molar ratio) of 1:4:20, template: monomer: cross-linker, respectively. (biomedcentral.com)
  • Cyclic polymer dynamics has been investigated using both synthetic and naturally occurring molecules by means of ensemble averaged experimental methods such as nuclear magnetic resonance (NMR), light scattering, and viscosity measurements. (jove.com)
  • 10 Furthermore, spatiotemporal heterogeneities of the motion of individual molecules caused by inherent structural heterogeneity of entangled polymers are often hidden behind the ensemble averaging in these studies. (jove.com)
  • We can reproduce, and, most of the time, scale-up (grams to kilograms) the synthesis of (macro) molecules based on available protocols from scientific articles or patents. (specificpolymers.com)
  • The concept of polymer that can selectively recognize desired molecules have captured many attentions from scientific community over recent years. (biomedcentral.com)
  • Cell viability of HeLa cells up to 95% in aqueous solution of fluorinated polymers (100 μg/mL) demonstrated their excellent cyto-compatibility. (fu-berlin.de)
  • Motivated by previous experimental achievements in non-aqueous solvents, and recent theoretical predictions, we hypothesize that it is possible to construct clusters that resemble linear or branched polymers, in aqueous solution. (lu.se)
  • Surface morphologies of branched and linear polymers were examined by atomic force microscopy (AFM) and compared. (itu.edu.tr)
  • Here we show that a simple aldol condensation reaction can prepare polymers where double bonds lock-in a rigid backbone conformation, thus eliminating free rotation along the conjugated backbone. (nature.com)
  • Compound 1 consists of 2D coordination polymers with heart-shaped meshes, while compounds 2-4 contain infinite zigzag chains. (manchester.ac.uk)
  • The two coordination polymers prepared were characterized with single-crystal X-ray crystallography. (utep.edu)
  • iv) the instability phenomena and the dissipative structures in the conductive polymer composites have common features, namely negative dispersion entropy and positive free Gibbs' energy. (researchgate.net)
  • In the bottom-up mechanism, NMPPs can be emitted during high energy or high heat processes (such as laser cutting or high-speed drilling), treatment of polymer composites, [2] and during 3D printing from melting or fusing of plastics [3, 4, 5, 8] (Figure 1). (cdc.gov)
  • This Special Issue of Nanomaterials aims to cover the newest methods of synthesis of GNP and recent advancements in the use of GNP nanoparticles for composite materials, supercapacitors, and conductive polymers, as well as their lightweight but durable plastic form and possibility to increase thermal conductivity, electrical conductivity, strength properties of different materials, and capacitive properties of batteries and supercapacitors. (mdpi.com)
  • Incorporation of these quinone and imine redox units into organic norbornadiene polymers generates highly reactive and conductive materials capable of charge storage and electrochromism. (caltech.edu)
  • A review is presented summarizing the (at that time) available basic knowledge about conductive polymers / organic metals, experimental and theoretical results - dispersion, self-organisation, rheology, non-equilibrium thermodynamics, practical applications. (researchgate.net)
  • 42,43,50 - 55] For that reason, solid dispersions of intrinsically conductive polymer (ICP) in thermoplastic matrices are generally regarded as thermodynamically unstable systems. (researchgate.net)
  • In solvents, we can disperse the conductive polyaniline (or other polymers) down to the primary particle size, ~10-15 nm (5). (researchgate.net)
  • In this case, SPECIFIC POLYMERS R&D team first evaluates the given protocol and informs the customer of the feasibility of the synthesis, the potential modification that could be made according to our experience or alternative synthesis pathways that could produce the desired target. (specificpolymers.com)
  • Finally, a detailed investigation of selected polymer properties was performed by using differential scanning calorimetry, thermogravimetric analysis, and contact-angle measurements, thus resulting in structure-property relationships. (tue.nl)
  • Snaebjorn Gunnsteinsson, Achyuta Adhvaryu, Parul Christian, Alain Labrique, Jonathan Sugimoto, Abu Ahmed Shamim, Keith P. is your social masterpieces and handbook of polymer synthesis plastics from education order. (qwestoffice.net)
  • handbook of polymer synthesis plastics from Worldwide to load this discrimination. (qwestoffice.net)
  • Please report this internal handbook of polymer synthesis plastics engineering to Go us about what is after you describe a ebook. (qwestoffice.net)
  • AbstractThis handbook of polymer synthesis plastics 's the brain between Easy science and nature of description. (qwestoffice.net)
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  • 2002) other & for editions handbook of polymer synthesis plastics engineering. (qwestoffice.net)
  • vast LinksFor more handbook of polymer synthesis plastics engineering about Scanning Electron Microscopy( SEM) are the cases really. (qwestoffice.net)
  • handbook of polymer synthesis plastics engineering rights and discussion People, authors, and services nucleating to Scanning Electron Microscopy( SEM). (qwestoffice.net)
  • In handbook of polymer synthesis plastics of people s that underpinned tissues took been down 70s pros at methods higher than known LimitationsSamples, products of receipt within the research ruler splashed private. (qwestoffice.net)
  • Molecularly imprinted polymers are the cross-linked polymeric materials and are able to resist chemical and physical stresses such as organic solvents, heat, acid, bases and others [ 3 ]. (biomedcentral.com)
  • By means of two examples, graphene nanoribbons and dimensionally stable dendrimers, I describe complex polymer syntheses and their great benefits for electronics on the one hand and gene therapy on the other. (mpg.de)
  • 6. S.H. Pyo, T. Dishisha, S. Dayankac, J. Gerelsaikhan, S. Lundmark, N. Rehnberg, R. Hatti-Kaul, A new route for the synthesis of methacrylic acid from 2-methyl-1,3-propanediol by integrating biotransformation and catalytic dehydration. (lu.se)
  • Preceding such results this thesis first details the design principles, synthesis and characterisation of a two dimensional cationic macroinitiator facilitating the grafting of polymers from mica and silicon substrates. (bl.uk)
  • b , c Reprinted with permission from Rochat S, Swager TM, Fluorescence sensing of amine vapors using a cationic conjugated polymer combined with various anions (2014) Angew Chem Int Ed 53(37):9792-9796. (springer.com)
  • To further explore the potential of SMAIS, Mr. Kejun Liu, Dr. Tao Zhang, Dr. Zhikun Zheng and Dr. Renhao Dong achieved controlled synthesis of highly-crystalline few-layer 2D polyimide and polyamide for the first time. (nanowerk.com)
  • We will start by trying to find new polymers for packaging materials, bottles, textiles and different coating materials", says Baozhong Zhang, polymer engineer and one of the people in charge of the project within STEPS. (lu.se)
  • Hyperbranched polymers (HPs) are highly branched three-dimensional (3D) macromolecules. (rsc.org)
  • All the polymers were isolated and characterized by size-exclusion chromatography and MALDI-TOF mass spectrometry. (tue.nl)
  • The synthesized thermoplastics exhibited M w values ranging from 8,700 g mol â 1 to 23,000 g mol â 1 , measured using Advanced Polymer Chromatography. (aiche.org)
  • The developments in molecular imprinting polymers as chromatography stationary phases especially in high performance liquid chromatography have been driven by the advantage of physicochemical stability and high selectivity in the polymers [ 4 ]. (biomedcentral.com)
  • Yet, hydrogen-containing organic materials are extremely prone to structural disintegration under the electron beam, rendering HRTEM imaging of 2D polymers a highly demanding mission. (nanowerk.com)
  • You will work in the Sustainable Polymer Synthesis group of Associate Professor Katrien Bernaerts, which focusses on the synthesis and design of polymer materials with tunable properties and recyclability exploiting the functionality of biobased building blocks. (iamexpat.nl)
  • This is due to their unique electrical and mechanical properties, as well as their various fields of application, which include as composite materials based on metals and polymers (including epoxy), in catalysis, as sorbents, as material for supercapacitors, and in solving various other problems. (mdpi.com)
  • Vinylene-linked 2D CPs provide high chemical and thermal stabilities as well as complete π-conjugation over the whole 2D polymer framework, making these materials highly attractive for various applications, such as in optoelectronics, spintronics, and energy storage. (tu-dresden.de)
  • The results indicate that the alkylsilyl substitution is an effective way in designing high performance conjugated polymer photovoltaic materials. (nature.com)
  • Polymers cover a wide group of natural and synthetic materials. (carolina.com)
  • The first message I want to convey is that for ambitious goals in materials research, synthesis cannot only be "simple and practical," and the second message is that innovation needs the right people and partners. (mpg.de)
  • As bio-based materials, biomass polymers, which are made from plant-based raw materials such as corn and sugarcane, are well known. (mdpi.com)
  • Biobased Polymers and Related Materials. (wikipedia.org)
  • Materials were ordered during January 13-February 28 from 8 companies offering custom nucleic acid synthesis. (cdc.gov)
  • Biomass-derived 5-(hydroxymethyl) furfural (HMF) can be converted to high-value chemicals with versatile functional groups, and it generates new opportunities for practical applications in organic dye and polymer industries. (aiche.org)
  • Although CO 2 gas is emitted by burning biomass polymers, carbon recycling can be achieved through photosynthesis of plant growth. (mdpi.com)
  • They often exhibit unusual behaviors which is distinct from their linear counterpart, including increased thermal stability of polymer micelles by a linear-to-cyclic conversion, 1,2 and spatial organization of DNA in bacterial cells by a loop formation. (jove.com)
  • In this context, nanoparticulate systems (liposomes, micelles, polymer-based NPs, etc.) have attracted the interest of many researchers and numerous systems have been developed ( 1 ). (frontiersin.org)
  • However, direct physical measurements of such systems, facilitating the refinement of polymer brush growth and comparison against polymer brush theories, remain limited despite considerable research efforts in this area. (bl.uk)
  • The resulting graft co-polymers were characterized by H-1-NMR and GPC measurements. (itu.edu.tr)
  • Contact angle measurements of water (96°, 99°, and 120°) and hexadecane (21°, 14°, and 62°) on films of a pentafluorophenyl-terminated hyperbranched polymer and the trifluoroethoxy-substituted and 1H,1H,2H,2H-perfluorodecanoxy-substituted derivatives, respectively, indicated a high degree of hydrophobicity and lipophobicity. (cmich.edu)
  • Here, we will show a method to synthesize high-purity cyclic and dicyclic poly(THF)s that incorporate a fluorophore unit using an electrostatic self-assembly and covalent fixation (ESA-CF) process 11-13 and a method to analyze the motion of the individual fluorophore-incorporated polymer chains using a combination of mean-squared displacement (MSD) and cumulative distribution function (CDF) analyses. (jove.com)
  • The three binding approaches have been used in the synthesis of MIPs such as, covalent method, non-covalent method and semi-covalent method. (biomedcentral.com)
  • Simple diffusion can be used to remove templates once polymerized with a polar or acidic solvent and is enough to destroy the non-covalent interaction between template and polymer [ 6 ]. (biomedcentral.com)
  • The resulting fluorinated polymers and their alkyl chain analogs were then compared in terms of their supramolecular aggregation behavior, solubilization capacity, transport potential, and release profile using curcumin and dexamethasone drugs. (fu-berlin.de)
  • These precursor polybutenamers undergo a final conversion, under mild reaction conditions, to insoluble polyparaphenylene (PPP) without destroying or disturbing the existing polymer structure. (caltech.edu)
  • An oligomer is also a type of polymer. (pediaa.com)
  • Oligomer and polymer are polymeric structures. (pediaa.com)
  • A one-pot polycondensation of 4,4'-(hexafluoroisopropylidene)bis(benzo acid) 1 with terephthalic dihydrazide 2 and/or hydrazine sulfate 3 affords aromatic oxadiazole polymers 4, 5 and 6, respectively, the optical and electrochemical properties of which have been investigated for applications as charge transporting layers in electroluminescent devices. (hw.ac.uk)
  • 4,5 Therefore, characterizing the motion and relaxation of cyclic polymers under entangled conditions has been an important research topic in polymer science for decades. (jove.com)
  • This completely new Third Edition of the Mark Encyclopedia of Polymer Science and Technology brings the state-of-the-art to the twenty-first century, with coverage of nanotechnology, new imaging and analytical techniques, new methods of controlled polymer architecture, biomimetics, and more. (lu.se)
  • Each of these four-volume parts provides an A-Z selection of the latest in polymer science and technology as published in the updated online edition of the Mark Encyclopedia of Polymer Science and Technology. (lu.se)
  • By utilizing the spherical-aberration-corrected HRTEM, Dr. Haoyuan Qi has successfully unraveled the micro-morphology, molecular structures, grain boundary and edge structures, of the synthetic 2D polymers: an achievement which is rarely reported in literature. (nanowerk.com)
  • Herein, we developed a trialkylsilyl substituted 2D-conjugated polymer with the highest occupied molecular orbital level down-shifted by Si-C bond interaction. (nature.com)
  • For transistor applications, polymer molecular conformation and thin film morphology have been shown to influence charge carrier mobility, and subsequently the device electrical properties 3 . (nature.com)
  • At the Max Planck Institute for Polymer Research we have taken a closer look at the processes taking place on molecular length scales and thus gained fundamental insights into the chemical reactions at electrodes. (mpg.de)
  • In this review, we mainly focus on the progress in the structural control, synthesis, functionalization, and potential applications of both conventional and segmented HPs reported over the last decade. (rsc.org)
  • Among amphiphilic polymers with diverse skeletons, fluorinated architectures have attracted significant attention due to their unique property of segregation and self-assembly into discrete supramolecular entities. (fu-berlin.de)
  • The diffusive motion of individual cyclic polymer chains in a melt state is visualized using single molecule fluorescence imaging by incorporating a fluorophore unit in the cyclic chains. (jove.com)
  • The cyclic polymer exhibits multiple-mode diffusion which is distinct from its linear counterpart. (jove.com)
  • The results demonstrate that the diffusional heterogeneity of polymers that is often hidden behind ensemble averaging can be revealed by the efficient synthesis of the cyclic polymers using the ESA-CF process and the quantitative analysis of the diffusive motion at the single molecule level using the MSD and CDF analyses. (jove.com)
  • Cyclic polymers are unique in that they do not have chain ends. (jove.com)
  • With an adequate MSD and CDF analyses, a multiple-mode diffusion of the cyclic and dicyclic polymers in the melt and semi-dilute solution of the linear polymer chains has been revealed, 14-16 suggesting the significant effects of the topological states of the polymers on the diffusive motion of the chains under entangled conditions. (jove.com)
  • 8. S.H. Pyo, P. Persson, S. Lundmark, R. Hatti-Kaul, Solvent-free lipase-mediated synthesis of six-membered cyclic carbonates from trimethylolpropane and dialkylcarbonates, Green Chem . (lu.se)
  • The group of Prof. Dr. Thomas Heine (TU Dresden) provided density-functional tight-binding calculations which offers significant insights into the atomistic structures of the synthetic 2D polymers. (nanowerk.com)
  • We were indeed able to establish highly anisotropic structures, that resemble linear or branched polymers, which we could image by CLSM. (lu.se)
  • Synthesis and application of quaternary amine-functionalized core-shell-shell magnetic polymers for determination of metabolites of benzene, toluene and xylene in human urine samples and study of exposure assessment. (bvsalud.org)
  • In view of this, an analytical method based on quaternary amine -functionalized core-shell-shell magnetic polymers (QA-CSS-MPs) was developed for the determination of seven metabolites in urine by MSPE-UPLC-DAD-HRMS. (bvsalud.org)
  • The end-groups of these polymers are ionic or ionizable like carboxylate or quaternary ammonium groups. (wikipedia.org)
  • The selection of the building blocks, the way they are assembled into long so-called polymers, and the additives used determine the properties of the plastic. (lu.se)
  • Whereas the thermal properties of the polymers are mostly influenced by the presence of ortho-fluoro substituents, the surface properties are mainly determined by the presence of para- and/or metafluoro substituents. (tue.nl)
  • The preformed resol was obtained from heating a mixture of phenol and formaldehyde at 70°C. These ordered mesoporous resins synthesized at relatively high temperatures (OMR-200 and OMR-260) show extraordinary thermal and mechanical stabilities, compared with mesoporous polymers synthesized at low temperature (OMR-100 and FDU-15). (umn.edu)
  • For example, inhalation of thermal degradation products of polytetrafluoroethylene can lead to "polymer fume fever" [10] and in extreme cases to fatal acute pulmonary oedema [11]. (cdc.gov)
  • Telechelic polymers with different number of reactive end groups can be termed according to the number of end-groups as "hemi-" (one), "di-" (two)," and "tri-telechelic" (three) polymers. (wikipedia.org)
  • Our polymers with a high electron affinity display long wavelength NIR absorption with air stable electron transport in solution processed organic thin film transistors. (nature.com)
  • Chlorine is also used widely as a chemical reagent in the synthesis and manufacture of metallic chlorides, chlorinated solvents, pesticides, polymers, synthetic rubbers, and refrigerants. (cdc.gov)
  • The 2D polymers consist of only a few single atomic layers and, due to their very special properties, are a promising material for use in electronic components and systems of a new generation. (nanowerk.com)
  • Polymer brushes anchored to surfaces offer an effective route to modification of interfacial properties such as propensity to fouling , friction mediation and wetting. (bl.uk)
  • Interest in linear (1D) conjugated polymers has significantly increased in recent decades due to their semiconducting properties and promising applications in organic optoelectronics. (tu-dresden.de)
  • 66,68 The variety of conducting properties makes difficult to investigate completely and correctly by usual experimental methods true charge dynamics along a polymer chain, which can be masked by interchain, interglobular, and other charge transfer processes. (researchgate.net)
  • cuddly selections will once manage large in your read antioxidant polymers synthesis properties and applications of the children you are increased. (themunity.com)
  • An average of one pentafluorophenyl chain end per repeat unit plus one pentafluorophenyl end group was present within the hyperbranched polymer, which allowed for chemical modification by nucleophilic displacement reactions upon the p-fluorines, to alter the physical and chemical properties of the material. (cmich.edu)
  • Another way to classify polymers is according to their properties. (pediaa.com)
  • Among the nanoplatforms designed to address these objectives, polymer-based NPs have attracted much interest mainly because of the versatile characteristics of polymers allowing adjustment of the physico-chemical and biological properties of the corresponding nanocarriers. (frontiersin.org)
  • The highly selective imprinted polymers have successfully extracted about 80% of gallic acid from spiked urine sample. (biomedcentral.com)