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作 者:王程[1] 冯涛[1] 傅智盛[1] WANG Cheng;FENG Tao;FU Zhi-sheng(MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering,ZJU-Hangzhou Xinglu High-end Polyolefin Research&Development Center,Zhejiang University,Hangzhou 310058,China)
机构地区:[1]浙江大学,高分子合成与功能构造教育部重点实验室,高分子科学与工程学系,山西浙大新材料与化工研究院,浙江大学-星庐科技高端聚烯烃联合研发中心,杭州310058
出 处:《高分子通报》2025年第1期137-145,共9页Polymer Bulletin
基 金:山西浙大新材料与化工研究院成果转化项目(项目号2021SZ-AT001).
摘 要:烯烃配位聚合是高分子化学教学中的一个重要部分。自20世纪50年代的“镍效应”发现开始,至今已七十余年。目前多数高校选用的潘祖仁教授主编的《高分子化学(第五版)》教材中,只涉及了Ziegler-Natta引发体系和茂金属引发体系,非茂后过渡金属催化剂仅在《高分子化学(增强版)》中有简短介绍,且“链行走”这一重要机理未见提及。从1995年Brookhart等报道的首个能够催化乙烯聚合制备高分子量聚乙烯的后过渡金属催化剂(即α-二亚胺镍催化剂)以来,近30年中,后过渡金属催化烯烃聚合,尤其是以镍金属为中心的烯烃聚合催化剂有了长足的发展。本文选取了具有链行走机理、具备催化α-烯烃聚合以及烯烃与极性单体共聚能力的α-二亚胺镍催化剂进行了详细分析,并对近年来后过渡金属烯烃聚合催化剂进行了简单介绍,提出了该部分需要增补入《高分子化学》教材的建议。Olefin polymerization is a crucial part in polymer chemistry education.Since the discovery of the“nickel effect”in the 1950s,more than seventy years have passed.The textbook“Polymer Chemistry(Fifth Edition)”edited by Prof.PAN Zu-ren,widely used in many universities,primarily covers the Ziegler-Natta and metallocene initiation systems,with only a brief introduction to non-metallocene post-transition metal catalysts in the“Polymer Chemistry(Enhanced Edition)”.Moreover,the important mechanism of“chain walking”was not mentioned.Since Brookhart et al.reported the first post-transition metal catalyst could catalyze ethylene polymerization to produce high molecular weight polyethylene(i.e.,α-diimine nickel catalysts)in 1995,the field of olefin polymerization catalyzed by post-transition metals,especially nickel-based catalysts,has made significant progress over the past 30 years.This paper provides a detailed analysis ofα-diimine nickel catalysts,which exhibit the chain walking mechanism and possess the ability to catalyzeα-olefin polymerization and the copolymerization of olefins with polar monomers.Additionally,it offers a brief overview of recent advancements in post-transition metal olefin polymerization catalysts and proposes suggestions for incorporating this content into the“Polymer Chemistry”textbook.
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