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Copolymer chain formation of 2-oxazolines by in situ1H-NMR spectroscopy: dependence of sequential composition on substituent structure and monomer ratios
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SYSNO ASEP 0541040 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Copolymer chain formation of 2-oxazolines by in situ1H-NMR spectroscopy: dependence of sequential composition on substituent structure and monomer ratios Author(s) Abbrent, Sabina (UMCH-V) RID, ORCID
Mahun, Andrii (UMCH-V) ORCID
Dušková-Smrčková, Miroslava (UMCH-V) RID
Kobera, Libor (UMCH-V) RID, ORCID
Konefal, Rafal (UMCH-V) RID, ORCID
Černoch, Peter (UMCH-V) RID, ORCID
Dušek, Karel (UMCH-V) RID, ORCID
Brus, Jiří (UMCH-V) RID, ORCIDSource Title RSC Advances. - : Royal Society of Chemistry
Roč. 11, č. 18 (2021), s. 10468-10478Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords poly-2-oxazolines ; polymer microstructure ; in-situ CROP co-polymerization Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GA18-12925S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UMCH-V - RVO:61389013 UT WOS 000629770100008 EID SCOPUS 85102791737 DOI 10.1039/D1RA01509E Annotation In situ 1H NMR characterization of copolymerization reactions of various 2-oxazoline monomers at different molar ratios offers detailed insight into the build-up and composition of the polymer chains. Various 2-oxazolines were copolymerized in one single solvent, butyronitrile, with 2-dec-9′-enyl-2-oxazoline, where the double bond allows for post-polymerization modification and can function as a crosslinking unit to form polymer networks. The types of the monomers and their molar ratios in the feed have a strong effect on the microstructure of the forming copolymer chains. Copolymers comprising 2-dec-9′-enyl-2-oxazoline and either 2-ethyl-, 2-isopropyl-, 2-butyl-, 2-heptyl, 2-nonyl- or 2-phenyl-2-oxazoline, show significant differences in sequential structure of copolymers ranging from block to gradient and random ordering of the monomer units. 1H NMR was found to be a powerful tool to uncover detailed oxazoline copolymerization kinetics and evolution of chain composition. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2022 Electronic address https://pubs.rsc.org/en/content/articlelanding/2021/RA/D1RA01509E#!divAbstract
Number of the records: 1