Ancillary Ligand Effect on Single-Site Styrene Polymerization:  Isospecificity of Group 4 Metal Bis(phenolate) Catalysts

Styrene is polymerized isospecifically by group 4 metal complexes that contain a C2-symmetrically coordinated 1,4-dithiabutane-linked bis(phenolato) ligand activated by methylaluminoxane.