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Showing 1 to 20 of 62 for “"polymer synthesis"”.
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Expanding the chemical tunability and precision of bottlebrush polymer synthesis
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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Two-dimensional polymer synthesis : towards a two-dimensional replicating system for nanostructures
… is introduced as a new method of nanostructure synthesis. One possible implementation of a 2-D replicating system is pursued which uses a diacetylene moiety for cross-linking and amide hydrogen bonding for molecular recognition between replicates and templates. The synthesis of several monomers …
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Cyclopentadiene as a Platform for Polymer Synthesis and Modification of Macromolecular Systems
… substituent on the terminal diene rings. Polymerizations with 1,4- and 1,3-diethynylbenzene afforded linear Diels-Alder polyphenylenes (DAPPs) having lateral tert-butyl and perfluoro-4-tolyl substituents. The perfluoro-4-tolyl-substituted DAPPs are thermally stable, glassy solids (Tg ~ 230 …
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Polymer synthesis for corona phase molecular recognition based on single-walled carbon nanotubes
… wrapped with methacrylic acid-styrene heteropolymer (MA-ST) can be used for specific corona phase molecular recognition (CoPhMoRe) of Vardenafil, a small molecule drug. This project is a follow-up study on viability of related polymers for CoPhMoRe sensing of five small molecule drugs: …
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Efficient Syntheses of Strong Binding Cryptands and their Derivatives for Supramolecular Polymer Synthesis
… of bipyridinium guests to produce suprapolymers and supramolecularly-linked block copolymers. Cryptands based on bis(meta-phenylene)-32-crown-10 (BMP32C10) were synthesized. The functionality of phenylenemethanol-BMP32C10 cryptand III-3 (Ka = 2.0 x 104 M-1) did not negatively affect …
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Combinatorial Polymer Synthesis and High-Throughput Screening Technology to Identify Optimal Approaches for Mineralized Tissue Engineering
… as the first combinatorial library of photopolymerizable and biodegradable materials. Polymers formed from this library were characterized with respect to changes in chemistry, macromer molecular weight, and macromer branching, which all affected the degradation, mechanics, and cellular …
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Engineering approaches to control polymer architecture
The synthesis of well-defined polymers offers great potential for improving society as there is nearly an infinite spectrum of tailored materials that can be made. Traditionally, the polymer community has mainly focused on purely chemistry driven methods for controlling polymer molecular weight, …
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Green manufacturing in the medical device industry : a case study
… Med Dev's first generation technology is a polymer scaffold that will be inserted into the injury site immediately post injury during a routine procedure. The scaffold prevents secondary injury (bruising and scarring) formation by filling the void space left by the injury, promoting cell …
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Self-Condensing Ring-Opening Metathesis Polymerization
Ring-opening metathesis polymerization (ROMP) is a great tool for synthesizing polyolefin materials with different topologies, including hyperbranched polymers—polymers with high degrees of branching and many end groups. However, hyperbranched polymer synthesis via ROMP is challenging due to …
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Polianilino ir pilipirolo, aukso nanodalelių bei įvairių elektronų pernašos tarpininkų taikymas gliukozės biologiniuose jutikliuose /
Enzymatic π-π-conjugated polymer synthesis method based on the glucose oxidase catalyzed oxidation of glucose and molecular oxygen to hydrogen peroxide and gluconolactone, which spontaneously hydrolyzes to gluconic acid reaction, was proposed in this work. Catalytic glucose oxidase activity was …
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Polianilino ir polipirolo, aukso nanodalelių bei įvairių elektronų pernašos tarpininkų taikymas gliukozės biologiniuose jutikliuose /
Enzymatic π-π-conjugated polymer synthesis method based on the glucose oxidase catalyzed oxidation of glucose and molecular oxygen to hydrogen peroxide and gluconolactone, which spontaneously hydrolyzes to gluconic acid reaction, was proposed in this work. Catalytic glucose oxidase activity was …
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From Block Copolymers to Crosslinked Networks: Anionic Polymerization Affords Functional Macromolecules for Advanced Technologies
… to water purification membranes. Progress in polymer synthesis and engineering now permit well-defined, ion-containing macromolecules with tunable morphologies, mechanical performance, ion conductivity, and 3D structure in order to address these globally challenged technologies. Achieving …
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Mechanically mediated trithiocarbonate addition to commodity polymers for a more circular economy
… in MW from 350 kDa down to ca. 15 kDa, then repolymerized back to 350 kDa. Other post-recycling reactions including block polymer synthesis and depolymerization are also possible and show promise. Expanding the scope outside of PMMA to other common plastics is studied as well, though it needs …
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The liquid chromatography of aromatic diamines: analytical and preparative
… of aromatic diamine isomers used in the synthesis of aromatic polyimides. Approximately 50 diamine isomers were separated on various silica gels using chloroform and/or cyclohexane mobile phases. A linear relationship between pK<sub>b</sub>, and log of the capacity factor was discovered …
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Initiated chemical vapor deposition of polymeric thin films : mechanism and applications
… (iCVD) is a novel technique for depositing polymeric thin films. It is able to deposit thin films of application-specific polymers in one step without using any solvents. Its uniqueness of in situ surface polymer synthesis distinguishes iCVD from conventional processes such as spin-on …
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Study of poly(phenylene ethynylene)s, dendritic quenchers, and molecular beacons towards the application of a poly(phenylene ethynylene)-based biosensor
… (PPE)s are highly emissive conjugated polymers that are easily quenched by target analytes. As a result, they have been increasingly incorporated into sensing platforms, both as chemosensors and as biosensors. This thesis describes the three components necessary for a MB-based PPE …
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Anti-oxidant Action and Anti-aging Activity of Phenylpropanoid Compounds
… measured and NIH 3T3 cell was used for collagen synthesis assay. Balb-c mouse were used to measure collagen assay, MPO assay, PLA₂ activity and lipid peroxidation in vivo system. Result: In DPPH radical scavenging activity, caffeic acid analogues had anti-oxidant activity in a dose-dependent …
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Michael addition of amines to α-ß unsaturated esters
… were also formed as byproducts during polymer synthesis. Optimization of conditions resulted in the formation of macrocycles in high yield"--Abstract, page iii.</p>
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