钛配合物烯烃聚合催化剂研究的新进展

New Progress of Titanium Complex Pre-catalysts

线性低密度聚乙烯是聚烯烃材料中亟待发展的高附加值树脂,近年来获得了快速发展和产业化应用,其关键推动力在于钛配合物催化剂的研究发展。本文综述了近几年钛配合物催化剂研究的新进展,探讨了配合物结构变化对催化剂活性和共聚性能的影响规律。

Linear low density polyethylene （LLDPE） is an advanced resin within polyolefins, and has been one of the most demanding synthetic materials and fast industrialized in recent years. The development is relied on the pre-catalysts,in which titanium complexes have widely explored. In this feature article,the new progress and our contribution of titanium complex pre-catalysts is illustrated, and the correlations between complex structures and their catalytic performances are discussed.