A process for preparing arylene sulfide polymers which comprises the steps of contacting at least one alkali metal hydroxide, water and at least one lactam to form a first mixture comprising an alkali metal aminoalkanoate, water and lactam, and subsequently contacting said first mixture with at least one sulfur source selected from the group consisting of alkali metal bisulfides, thiolactams, and hydrogen sulfide under reaction conditions of time and temperature sufficient to produce a second mixture comprising a polymerizable complex of an alkali metal aminolkanoate and the sulfur source, lactam, water and metal impurities; separating at least a portion of the metal impurities from the second mixture to form a third mixture; contacting at least one dihaloaromatic compound with the third mixture to produce a polymerization mixture; subjecting the polymerization mixture to polymerization conditions of time and temperature sufficient to produce the arylene sulfide polymer; and recovering the arylene sulfide polymer. In a further embodiment, the second mixture may be dehydrated prior to separating at least a portion of the metal impurities from the second mixture, or the third mixture may be dehydrated prior to contacting the third mixture with the dihaloaromatic compound.
一种制备芳基
硫醚聚合物的方法,包括以下步骤:将至少一种碱
金属羟化物、
水和至少一种内酰胺接触,形成第一混合物,包括碱
金属
氨基烷酸盐、
水和内酰胺,随后将所述第一混合物与选自碱
金属
硫代物、
硫内酰胺和氢
硫化物的至少一种
硫源接触,在时间和温度反应条件下,产生第二混合物,包括碱
金属
氨基烷酸盐和
硫源的聚合物复合物、内酰胺、
水和
金属杂质;从第二混合物中分离至少一部分
金属杂质,形成第三混合物;将至少一种二卤代芳香化合物与第三混合物接触,形成聚合物混合物;将聚合物混合物在时间和温度的聚合条件下进行聚合,产生芳基
硫醚聚合物;并回收芳基
硫醚聚合物。在另一实施例中,可以在从第二混合物中分离至少一部分
金属杂质之前脱
水第二混合物,或者可以在将第三混合物与二卤代芳香化合物接触之前脱
水第三混合物。