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

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2018,（6）
• 页码范围: 708-714
• 页数: 7页
• 语种: 英文

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.