Structure-Property Relationship Analysis of D-Penicillamine-Derivedβ-Polythioesters with Varied Alkyl Side Groups  

作　　者：Chun-Yan Lyu Wei Xiong Er-Qiang Chen Hua Lu 

机构地区：[1]Beijing National Laboratory for Molecular Sciences,Center for Soft Matter Science and Engineering,Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,College of Chemistry and Molecular Engineering,Peking University,Beijing,100871,China

出　　处：《Chinese Journal of Polymer Science》2023年第10期1555-1562,共8页高分子科学（英文版）

基　　金：supported by the National Science Fund for Distinguished Young Scholars(No.22125101).

摘　　要：The ring-opening polymerization of heterocyclic monomers and the reversed ring-closing depolymerization of corresponding polymers with neutral thermodynamics are broadly explored to establish a circular economy of next-generation plastics.Polythioesters(PTEs),analogues of polyesters,are emerging materials for this purpose due to their high refractive index,high crystallinity,dynamic property and responsiveness.In this work,we synthesize and polymerize a series of D-penicillamine-derivedβ-thiolactones(NRPenTL)with varied side chain alkyl groups,and study the structure-property relationship of the resulting polymers.The obtained PTEs exhibit tunable glass transition temperature in a wide range of 130–50℃,and melting temperature of 90–105℃.In addition,copolymerizations of monomers with different side chains are effective in modulating material properties.The obtained homo and copolymers can be fully depolymerized to recycle monomers.This work provides a robust molecular platform and detailed structure-property relationship of PTEs with potential of achieving sustainable plastics.

关 键 词：β-Polythioesters Geminal dimethyl Structure-property relationship Chemical recycling to monomers 

分 类 号：TQ317[化学工程—高聚物工业]