Fully Chemical Recyclable Poly(γ-butyrolactone)-based Copolymers with Tunable Structures and Properties  

作　　者：Yi-Huan Liu Xin Yuan Jia-Qi Wu Ming-Xuan Luo Xin Hu Ning Zhu Kai Guo 

机构地区：[1]Collegeof Biotechnology and Pharmaceutical Engineering,Nanjing Tech University,Nanjing 211800,China [2]Collegeof Materials Science and Engineering,Nanjing Tech University,Nanjing 211800,China [3]State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing Tech University,Nanjing 211800,China

出　　处：《Chinese Journal of Polymer Science》2022年第5期456-461,共6页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.22078150 and 21504039)。

摘　　要：The emerging chemical recyclable polymers,such as poly(γ-butyrolactone)(PGBL)and poly((R)-3,4-trans six-membered ring-fused GBL)(P((R)-M)),provide a good solution to the plastic pollution.However,these homopolymers suffer from limited structures and properties.Herein,we reported a fully chemical recyclable copolymer P(GBL-co-((R)-M))through ring-opening copolymerization(ROCOP)of GBL and(R)-M.By employing organomagnesium as the catalyst and regulating the reaction conditions,the chemical structures of copolymers were wellcontrolled(GBL content=13%-78%,Mn=6560-15600 g/mol,DM=1.08-1.59).The resultant P(GBL-co-((R)-M))exhibited fully chemical recyclability,which rapidly and quantitatively depolymerized into initial GBL and(R)-M monomer through chemolysis.By varying GBL content,tunable thermal properties were achieved for P(GBL-co-((R)-M)).The onset decomposition temperatures of copolymers varied from 193°C to 234°C.A linear evolution of glass transition temperature(T_(g))of P(GBL-co-((R)-M))versus GBL content was obtained as following equation of Tg=-1.06×GBL mol%×100+39.6.We hope that the reported fully chemical recyclable copolymers with tunable structures and properties would serve as the candidate material for sustainable applications.

关 键 词：Poly(γ-butyrolactone)-based copolymers Ring-opening copolymerization Chemical recyclability Organomagnesium 

分 类 号：TQ317[化学工程—高聚物工业]