公开(公告)号：US11608416B2

公开(公告)日：2023-03-21

申请号：US17639592

申请日：2020-01-13

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xingping Zhou ,  Yajun Zhao ,  Yong Wang ,  Xiaolin Xie

IPC: C08F220/14 ,  C08F293/00 ,  C08G81/02 ,  C08G63/06 ,  C08G63/66 ,  C08G63/82

Abstract: A method for synthesizing an aliphatic polyester block copolymer regulated by carbon monoxide. The method uses an organic cobalt metal complex as a convertible catalyst and includes: first regulating an anionic ring-opening copolymerization reaction between an aliphatic acid anhydride and an epoxy compound; then using carbon monoxide as a conversion agent for conversion to obtain a catalyst having a new catalytic active site; and regulating a vinyl monomer to perform active free radical polymerization to obtain an aliphatic polyester block copolymer having a controllable structure. The described synthesis method uses a convertible catalyst and a conversion agent, combines two controllable polymerization reactions which have different but compatible mechanisms, and obtains a block copolymer by means of a “one-pot” reaction.