Preparation of polyarylene sulphides with ketone or pinacone
    1.
    发明授权
    Preparation of polyarylene sulphides with ketone or pinacone 失效
    用酮或苦味酸制备聚亚芳基硫醚

    公开(公告)号:US4921935A

    公开(公告)日:1990-05-01

    申请号:US266502

    申请日:1988-11-03

    IPC分类号: C08G75/14 C08G75/025

    CPC分类号: C08G75/025

    摘要: This invention relates to a process for the preparation of polyarylene sulphides, preferably polyphenylene sulphide (PPS), whose fusion viscosities can be adjusted to specified values, from alkali metal sulphides and polyhalogenated aromatic compounds in a polar solvent in the presence of a ketone or pinacone. The resulting polyarylene sulphides which have specified fusion viscosities are distinguished by high stability of the melt and low chlorine content. They cause little corrosion in the reaction vessels used for their preparation.

    摘要翻译: 本发明涉及一种制备聚亚芳基硫醚,优选聚苯硫醚(PPS)的方法,该聚亚芳基硫醚(PPS)的熔融粘度可以由酮或酮酮存在下在极性溶剂中由碱金属硫化物和多卤代芳族化合物调节至规定值 。 所得到的具有特定熔融粘度的聚亚芳基硫化物的特征在于熔体的高稳定性和低氯含量。 它们在用于制备的反应容器中几乎没有腐蚀。