Process for the production of high molecular weight, optionally branched polyarylene sulphide with an ester or anhydride of a carboxylic acid

摘要

This invention relates to a process for the production of high molecular weight, optionally branched polyarylene sulphides from alkali metal sulphides and halogenated aromatic compounds in the presence of from 0.5 to 100 mol %, based on the molar quantity of aromatic dihalogen compounds, of an ester or anhydride of a carboxylic acid.