Review on Styrene Homopolymerization and Copolymerization with Ethylene UsingGroup 4A Catalyst Compounds

摘要

Since the discovery of syndiotactic polymerization of styrene, much attention hasbeen paid to develop more efficient catalyst systems as well as to clarify the polymerization mechanism. Stereospecific polymerization of alpha-olefins and styrene can be promoted by a variety of either heterogeneous or homogeneous catalytic systems based on transition metal compounds and organometallic cocatalysts. Although, at present, heterogeneous catalysts are prominent for industrial applications, the homogeneous ones are the most appealing for understanding the reaction mechanism and affording a unique possibility of