Stereogradient polycaprolactones formed by asymmetric kinetic resolution polymerization of 6-methyl- -caprolactone

Chiral phosphoric acid (CPA) catalyzed asymmetric kinetic resolution polymerization (AKRP) of 6-methyl- -caprolactone (6-MeCL) has been developed to synthesize stereogradient polycaprolactones. When using ( R )-CPA as the catalyst, ( R )-6-MeCL monomers were preferentially consumed, which was determ...

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Published inPolymer chemistry Vol. 12; no. 33; pp. 4856 - 4863
Main Authors Lv, Chengdong, Xu, Guangqiang, Yang, Rulin, Zhou, Li, Wang, Qinggang
Format Journal Article
Published 24.08.2021
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Summary:Chiral phosphoric acid (CPA) catalyzed asymmetric kinetic resolution polymerization (AKRP) of 6-methyl- -caprolactone (6-MeCL) has been developed to synthesize stereogradient polycaprolactones. When using ( R )-CPA as the catalyst, ( R )-6-MeCL monomers were preferentially consumed, which was determined by chiral H plc analysis and kinetic experiments. The AKRP process delivered polycaprolactones (PCLs) with high chain-end fidelity, controlled molecular weights and narrow molar mass dispersity. Moreover, the thermal properties, viscoelasticity and degradation characteristics of the resulting PCLs were also investigated. Chiral phosphoric acid catalyzed asymmetric kinetic resolution polymerizations of 6-methyl- -caprolactone were developed to synthesize stereogradient polycaprolactones.
Bibliography:10.1039/d1py00366f
Electronic supplementary information (ESI) available. See DOI
ISSN:1759-9954
1759-9962
DOI:10.1039/d1py00366f