| abstract |
(57) [Summary] [Objective] A PPS having a high molecular weight and moderate branching is obtained. [Structure] When a polyphenylene sulfide is produced by heating and reacting an alkali metal sulfide and dihalobenzene in the presence of an organic amide solvent, an aromatic compound (X) m -Ar- (SY) represented by the general formula (I) is produced. n (I) (where Ar is an aromatic residue having 3 to 24 carbon atoms, X is halogen, Y is hydrogen or an alkali metal, m Is an integer of 0 to 2, n is an integer of 1 to 6, and m + n ≧ 3 And react with each other. |