过渡金属乙烯齐聚与聚合催化剂研究进展

Progress of Transition Metal Complex Catalysts for Ethylene Oligomerization and Polymerization

综述了近年来过渡金属配合物催化乙烯齐聚与聚合的最新进展;介绍了乙烯齐聚或聚合的反应时间、反应温度、乙烯压力、助催化剂用量等反应条件及配体上不同取代基对前过渡金属(铬,锆,钛,钒)和后过渡金属(铁,钴,镍,铜)配合物的催化活性和齐聚或聚合产物的影响;分别以钛和镍配合物催化剂为例,介绍了前过渡金属和后过渡金属催化乙烯齐聚或聚合的机理。

The recent progress in the transition metal complexes as catalysts for ethylene oligomerization and polymerization is summarized. The influence of reaction conditions, such as time, temperature, the pressure of ethylene, the amount and type of co-catalyst and the different substitutes of ligand cf the complex on the obtained oligomer and polymer of the early and late transition metal （ chromium, zirconium, titaaium, vanadium, iron, cobalt, nickel and copper） complex catalysts is discussed. The mechanisms of oligomerization and polymerization catalyzed by the early and late transition metal complex are briefly described employing titanium and nickel complex catalysts as examples.