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US4303781A Process for the preparation of polyarylene sulphides 失效
聚亚芳基硫醚的制备方法

Process for the preparation of polyarylene sulphides
摘要:
Preparation of a polyarylene sulphide by polycondensing a substituted p-dihalogenobenzene and optionally a polyhalogeno aromatic compound having at least three halo substituents with an alkali metal sulphide in a polar solvent in the presence of a catalytic amount of a tri-alkali metal phosphate.
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