Development of New Olefin Polymerization Catalysts and their Applications to Novel Polymers

摘要

Historically,the discovery of highly active olefin polymerization catalysts has been the key for creating novel polymers with new or improved materials properties1,as demonstrated by the discovery of TiCl_4/R_3Al_2,MgCl_2-supported TiCl_4,and group 4 metallocene catalysts4.Therefore,efforts aimed at developing highly active new olefin polymerization catalysts have been intensively pursued in both academic and industrial research groups.As a consequence,quite a few highly active catalysts based on both early and late transition metal complexes have been developed5.