Verfahren zur Herstellung von schwefelhaltigen Polymeren

摘要

The invention concerns a process for preparing linear or branched sulphurous polymers such as polyarylene sulphides, in particular polyphenylene sulphide, from an aromatic dihalide compound and a sulphide in a solvent, wherein: a) the aromatic dihalide compound and the sulphide are partially reacted; b) the resultant salt which is not dissolved in the reaction medium is separated off; and c) the reaction mixture largely freed of the salt is further polymerized.