METHOD FOR POLYARYLENE SULFIDE PRODUCTION

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a polyarylene sulfide having a high molecular weight and excellent heat stability. SOLUTION: This method for continuous production of the polyarylene sulfide is characterized in that in a method in which the polyarylene sulfide is continuously produced from a sulfur source and a dihalogenated aromatic compound in an aprotic organic solvent, the dihalogenated aromatic compound is added dividedly a plurality of times in the polymerization reaction.