CATALYST FOR PRODUCING STYRENE POLYMER AND PROCESS FOR PRODUCING STYRENE POLYMER USING THE SAME

摘要

The present invention relates to a catalyst for producing a styrenic polymer which comprises a transition metal compound having a pi -ligand, an indenyl group bearing at least one substituent group on the side of its five-membered ring; to a catalyst for producing a styrenic polymer which comprises (A) the above transition metal compound, (B) an aluminoxane and/or an ionic compound comprising a noncoordinate anion and a cation, and (C) a Lewis acid to be used as the case may be; and to a process for producing a strenic polymer which comprises polymerizing a styrenic monomer or polymerizing a styrenic monomer along with an olefin or the like in the presence of the foregoing catalyst. By the use of the highly active catalyst of the present invention, it is made possible to efficiently produce a styrenic polymer having a high degree of syndiotactic configuration.