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    • 5. 发明公开
    • A process for preparing polyarylene sulfides
    • Verfahren zur Herstellung von Polyarylensulfiden。
    • EP0357045A2
    • 1990-03-07
    • EP89116020.2
    • 1989-08-30
    • IDEMITSU PETROCHEMICAL CO. LTD.
    • Senga, Minoru Idemitsu Petrochemical Comp., Ltd.
    • C08G75/02
    • C08G75/0259C08G75/0222
    • Polyarylene sulfides are prepared by reacting a dihalogen aromatic compound with a sodium hydrosulfide in the presence of an alkali metal aminoalkanoate and a lithium halide in an organic polar solvent. This process can prevent a decomposition of the sodium hydrosulfide during dehydration and produce the polyarylene sulfides in a granular form in high yields and with high efficiency.
      The polyarylene sulfides obtainable by this process are high in molecular weight and degree of whiteness and low in a content of salts remaining therein. Furthermore, the polyarylene sulfides are in the granular form so that they can be handled with ease because of their readily separability and washability.
    • 聚亚芳基硫化物是通过在碱金属氨基烷酸酯和卤化锂存在下,在有机极性溶剂中使二卤代芳族化合物与氢硫化钠反应来制备的。 该方法可以防止脱水期间硫氢化钠的分解,并以高产率和高效率生产颗粒形式的聚亚芳基硫化物。 通过该方法获得的聚亚芳基硫化物的分子量和白度高,剩余的盐含量低。 此外,聚亚芳基硫醚是颗粒状的,因此它们易于分离和洗涤性能容易地处理。