A convenient method to prepare random LA/CL copolymers from poly(L-lactide) and ε-caprolactone  

作　　者：Hao Ouyang Kun Nie Dan Yuan Yong Zhang Dongmei Cui Yingming Yao 

机构地区：[1]Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis,and State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University [2]School of Chemistry and Chemical Engineering, Taishan University [3]State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences

出　　处：《Science China Chemistry》2018年第6期708-714,共7页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (21402138, 21674070);the Major Research Project of the Natural Science of the Jiangsu Higher Education Institutions (14KJA150007);the Project of Scientific and Technologic Infrastructure of Suzhou (SZS201708);a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

摘　　要：Sequential addition of L-lactide(LA) followed by ε-caprolactone(CL), and simultaneous addition of both monomers, afforded random LA/CL copolymers in the presence of lanthanide aryloxides under mild conditions. Transesterification was proved to play a predominant role in random copolymer formation. Moreover, treatment of poly(L-lactide) with ε-CL led to random copolymer formation, which provides a new strategy not only to prepare random LA/CL copolymers, but also to directly modify PLLA.Sequential addition of L-lactide（LA） followed by ε-caprolactone（CL）, and simultaneous addition of both monomers, afforded random LA/CL copolymers in the presence of lanthanide aryloxides under mild conditions. Transesterification was proved to play a predominant role in random copolymer formation. Moreover, treatment of poly（L-lactide） with ε-CL led to random copolymer formation, which provides a new strategy not only to prepare random LA/CL copolymers, but also to directly modify PLLA.

关 键 词：random copolymers lanthanide complex TRANSESTERIFICATION LACTIDE Ε-CAPROLACTONE 

分 类 号：TQ316.3[化学工程—高聚物工业]