PRODUCTION OF STYRENIC PRODUCTION AND CATALYST THEREFOR

摘要

PURPOSE:To produce a syndiotactic polystyrene by polymerizing a styrenic monomer without using expensive aluminoxane requiring a large amount. CONSTITUTION:A syndiotactic polystyrene is produced by using a catalyst comprising a coordinated complex compound consisting of a transition metal compound such as triisobutylaluminum, an anion of a metal to which plural groups of tetra(pentafluorophenyl)boric acid dimethylaluminum are bonded and a nitrogen-containing cation having <=7 acid dissociation constant at 25 deg.C.