Process for production of styrene polymers.

摘要

A process for production of styrene polymers of high syndiotactic configuration is disclosed. composing polymerizing styrene or styrene derivatives by the use of a catalyst comprising: (A) a titanium compound, e.g., at least one compound selected from those represented by the formulae TiR<Sup>1</Sup>R<Sup>2</Sup>R<Sup>3</Sup>X<Sup>3</Sup><Sub>4</Sub><Sub>(a</Sub>, and TiR<Sup>1</Sup><Sub>d</Sub>R<Sup>2</Sup>2X<Sup>1</Sup><Sub>3 (d,e)</Sub> fall the symbols are as defined in the appended claims); and (B) a contact product of an organoaluminium compound and a condensation agent, e.g., a product resulting from modification of trimethylaluminum with water. Because of such high syndiotactic configuration, the styrene polymers are greater in thermal resistance and solvent resistance than conventional atactic polystyrene.