4.7 Article

Enzymatic synthesis, post-polymerization modification and cross-linking of functionalized poly(β-thioether ester) with pendant vinyl group

期刊

EUROPEAN POLYMER JOURNAL
卷 177, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2022.111482

关键词

Enzymatic polymerization; Functionalized poly(beta-thioether ester); Thiol-ene click chemistry; Michael addition reaction

资金

  1. Fundamental Research Program of Shanxi Province [201901D211268]
  2. National Natural Science Foundation of China [51903022]

向作者/读者索取更多资源

Vinyl-functionalized poly(beta-thioether ester) (PVTE) was successfully synthesized using immobilized lipase B from Candida antarctica (CALB) by enzyme-catalyzed polymerization. Four different functionalized monomers and three polymerization strategies were investigated. The influences of reaction conditions on the molecular weight of functionalized poly(beta-thioether ester)s were studied. The homopolymer and copolymers were characterized and demonstrated the possibility of postfunctionalization.
Vinyl-functionalized poly(beta-thioether ester) (PVTE) was synthesized by enzyme-catalyzed polymerization using immobilized lipase B from Candida antarctica (CALB) for the first time. Four different functionalized monomers were prepared and three polymerization strategies including polycondensation (PC), ring-opening polymerization (ROP), and ring-opening and condensation copolymerization (ROCCP) were investigated. The influences of reaction conditions such as polymerization temperature, time, and monomer ratio on the molecular weight of functionalized poly(beta-thioether ester)s were also studied. Both the homopolymer and copolymers were characterized by NMR, SEC, TGA and DSC. Moreover, these poly(beta-thioether ester)s containing pendant double bonds toward postfunctionalization were demonstrated by photoinitiated thiol-ene click chemistry and Michael addition reaction, providing a way to cross-linked polyester gels.

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