Process for producing cyclic polyarylene sulfide
    1.
    发明授权
    Process for producing cyclic polyarylene sulfide 有权
    环状聚芳硫醚的制备方法

    公开(公告)号:US08329832B2

    公开(公告)日:2012-12-11

    申请号:US12528924

    申请日:2008-02-27

    IPC分类号: C08F75/00

    摘要: A method for producing a cyclic polyarylene sulfide, wherein a cyclic polyarylene sulfide is produced by heating a reaction mixture which is composed of at least a linear polyarylene sulfide (a), a sulfidizing agent (b), a dihalogenated aromatic compound (c) and an organic polar solvent (d). This method for producing a cyclic polyarylene sulfide is characterized in that not less than 1.25 liters of the organic polar solvent is used per 1 mole of the sulfur content in the reaction mixture. This method enables to efficiently produce a cyclic polyarylene sulfide, more specifically cyclic oligoarylene sulfide by an economical and simple process in short time.

    摘要翻译: 一种环状聚芳硫醚的制造方法,其中通过加热由至少线型聚芳硫醚(a),硫化剂(b),二卤化芳香族化合物(c)和 有机极性溶剂(d)。 该环状聚芳硫醚的制造方法的特征在于,相对于反应混合物中的1摩尔硫含量,使用不小于1.25升的有机极性溶剂。 该方法能够在短时间内通过经济且简单的方法有效地制备环状聚芳硫醚,更具体地说是环状低聚芳硫醚。