α-二亚胺镍/钯催化剂体系用于乙烯聚合研究进展  

Research progress ofα-diimide nickel/palladium catalyst system for ethylene polymerization

作　　者：刘真 LIU Zhen(Sinopec(Beijing)Research Institute of Chemical Industry Co.,Ltd.,Beijing 100013,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100013

出　　处：《石油化工》2024年第6期903-911,共9页Petrochemical Technology

摘　　要：带有大位阻基团的二亚胺催化体系在烯烃聚合中已经有着非常广泛的应用,它的结构中具有的诸多调控位点可实现催化剂性能及所制备聚合物性能的调整。介绍了近年来Brookhart催化体系的研究进展,综述了该催化体系的改进方法,主要包括改变配体骨架、N-芳基对位基团修饰、N-芳基取代基修饰及其他类型的修饰等,并分析了催化体系的改进对催化剂活性以及聚合物性能的影响。Theα-diimide catalyst system with large steric hindrance radical groups has found widespread application in olefin polymerization.Plenty of regulatory sites within its structure enable adjustments to both catalyst performance and the properties of the prepared polymers.This paper presented recent progress in the Brookhart catalytic system and outlines methods for their improvement.These methods encompass various modifications,including change in ligand backbone,modification of N-aryl para-groups,modification of N-aryl substituent groups,and other related modifications.Additionally,the influence of the improvement of the catalytic system on catalyst activity and polymer properties was analyzed.

关 键 词：Brookhart催化剂 烯烃聚合 活性 支化度 

分 类 号：TQ426.8[化学工程]