乙烯聚合用树枝状过渡金属催化剂研究进展

Research progress of dendritic transition metal catalysts for ethylene polymerization

摘要:

树枝状过渡金属催化剂是在树枝状大分子上负载上过渡金属活性中心,因此,此类催化剂既具有树枝状大分子特有的艺术结构,同时还具有过渡金属配合物的功能化性能,使其两者能够协同发挥作用,兼具均相和非均相催化体系的特点,在催化烯烃聚合方面具有较高的催化活性和良好的催化稳定性,近年来备受关注,催化乙烯聚合就是其中的研究热点之一。本文按其过渡金属活性中心进行分类,综述了近年来国内外树枝状过渡金属催化剂在这乙烯聚合方面的进展,阐述了多种树枝状效应产生的原因,并且对乙烯聚合用树枝状过渡金属催化剂的发展前景进行了展望。

Abstract:

Dendritic transition metal catalysts are transition metal active centers loaded on dendritic macromolecular. Therefore, these catalysts not only have the unique artistic structure of dendrimers, but also have the functional performance of transition metal complexes, so that they can work together, and have the characteristics of homogeneous and heterogeneous catalytic systems, It has high catalytic activity and good catalytic stability in catalytic olefin polymerization. It has attracted much attention in recent years, and catalytic ethylene polymerization is one of the research hotspots. This paper is classified by their transition metal active center and summarizes the progress of dendritic transition metal catalysts in this ethylene polymerization at home and abroad in recent years, expounds the causes of various dendritic effects, and looks forward to the development prospect of dendritic transition metal catalysts for ethylene polymerization