发明授权
US4663430A Process for the preparation of high molecular weight polyarylene sulphide in the absence of water 失效
在不存在水的情况下制备高分子量聚亚芳基硫化物的方法

Process for the preparation of high molecular weight polyarylene
sulphide in the absence of water
摘要:
This invention relates to a process for the preparation of high molecular weight, optionally branched polyarylene sulphides. These may be prepared from alkali metal sulphides and aromatic halogen compounds in a polar organic solvent in the absence of water.
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