نتایج جستجو برای: comonomer

تعداد نتایج: 286  

Journal: :Macromolecular Rapid Communications 2021

Nonionic double thermoresponsive diblock copolymers with both upper critical solution temperature (UCST) and lower (LCST) phase transitions are synthesized via eco-friendly photoiniferter reversible addition–fragmentation chain transfer polymerization. While the biocompatible random copolymer of di(ethylene glycol) methyl ether methacrylate oligo(ethylene accounts for LCST transition, block pol...

Journal: :Processes 2021

A new data mining approach as a short cut method is given for the determination of copolymer composition from mass spectra. Our simplifies spectra by reduction number peaks. The proposed procedure, namely selection peaks, which based on most abundant peak spectrum, can be performed manually or more efficiently using our recently invented Mass-remainder analysis (MARA). considerable MS also calc...

Journal: :Macromolecular Symposia 2023

Size exclusion chromatography (SEC) is a technique routinely used at high temperature to analyze the molar mass distribution (MMD) in polymers. The of comonomer along axis copolymer key microstructural feature that determines macroscopic properties material and thus its range possible applications. However, unsaturated polymers requiring dissolution temperature, measurement chemical composition...

Journal: :MATEC web of conferences 2022

Powdery high molecular weight polyacrylonitrile (HMW-PAN) polymers were successfully synthesized by aqueous deposited polymerization (ADP) method with 2,2'-azobis (2-methyl propionamide) dihydrochloride (AIBA) as the initiator and itaconic acid (IA) comonomer. The utilization of IA into ADP system was conducive to relax proceeding thermo-oxidation process. Differential scanning calorimeter (DSC...

Journal: :Polymer 2021

Highly processable hydrogels loaded with active components for localised drug delivery and/or live cells regenerative medicine are an attractive target biotechnology research. We describe a single-pot precipitation polymerisation of poly (N-isopropylacrylamide) (pNIPAM) from the surface dispersed Laponite® platelets in aqueous media above its lower critical solution temperature (LCST), yielding...

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