Double stimulus-responsive palladium catalysts for ethylene polymerization and copolymerization  

作　　者：Hailong He Wenbing Wang Wenmin Pang Chen Zou Dan Peng 

机构地区：[1]CAS Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei National Laboratory for Physical Sciences at the Microscale,Hefei 230026,China

出　　处：《Chinese Chemical Letters》2024年第7期407-411,共5页中国化学快报（英文版）

基　　金：supported by National Natural Science Foundation of China(No.52203016);China Postdoctoral Science Foundation(Nos.2021M703072 and 2022T150617);USTC Research Funds of the Double First-Class Initiative(No.YD9990002018);The Fundamental Research Funds for the Central Universities(No.WK9990000142)。

摘　　要：The external stimulus response strategy has been evolved rapidly in the field of olefin polymerization.In this work,we modularly synthesized three types of double stimulus responsiveα-diimine palladium catalysts,combining redox regulation and other regulation together,such as light,Lewis acid and alkali cations.The catalytic activities and the molecular weight of polyethylene products can be regulated for 4 times in ethylene polymerization.These palladium complexes were also used for the copolymerization reaction of ethylene and polar monomers,such as methyl 10-undecylenate and methyl acrylate,effectively regulating the catalytic activities,the molecular weight and polar monomer incorporation of the prepared copolymers.The research on these dual-regulated palladium complexes makes full use of prepared catalysts and provides new inspirations for regulating olefin polymerization.

关 键 词：Dual-regulated Stimulus-responsive Palladium Ethylene polymerization Polar monomer 

分 类 号：TQ426[化学工程] TQ325.12