Well-controlled Organocatalytic Ring-opening Polymerization of Seven-membered Cyclic Carbonates with Cyclohexyl Fusion  

作　　者：ZHANG Wei SHAN Si-Yi DAI Jiang CAI Zhongzheng ZHU Jian-Bo 

机构地区：[1]Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization,College of Chemical Engineering and Materials Science,Tianjin University of Science and Technology,Tianjin,300457,P.R.China [2]National Engineering Laboratory of Eco-friendly Polymeric Materials(Sichuan),College of Chemistry,Sichuan University,Chengdu,610064,P.R.China

出　　处：《Chemical Research in Chinese Universities》2024年第5期856-862,共7页高等学校化学研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22071163,22371194,and 22301197);the Fundamental Research Funds from Sichuan University,China(No.2023SCUNL103).

摘　　要：Developing green and well-controlled polymerization methods is of great significance for the preparation of biomedical polymer materials.In this contribution,an efficient organocatalytic ring-opening polymerization(ROP)of a class of seven-membered cyclic carbonates(T6DO,T6HDO,C6DO,C6HDO)containing cis-or trans-cyclohexane structure was established.Organic catalyst 1,5,7-triazabicyclo[4.4.0]dec-5-ene(TBD)promoted living polymerization of these cyclic carbonates to deliver polycarbonate and block copolymer products with predictable molecular weights and narrow dispersity.The robust TBD-mediated ROP at 90°C showcased turnover frequency(TOF)up to 10^(3)h^(−1).The resulting amorphous polycarbonates displayed good thermal stability.

关 键 词：CO_(2) Organic catalyst Living ring-opening polymerization Aliphatic polycarbonate 

分 类 号：O62[理学—有机化学]