PRECIPITATION POLYMERIZATION OF {60 -METHYLSTYRENE

摘要

The present invention relates to a process for precipitation polymerization of alpha -methylstyrene in a hydrocarbon medium in which poly- alpha -methylstyrene is insoluble or only little soluble. The polymerization is initiated by a finely divided alkali metal which is used together with certain phosphoric acid amides or ethers or mixtures thereof as polymerization accelerators.