METHOD FOR THE PURIFICATION OF POLY(ARYLENE ETHERS)
    1.
    发明申请
    METHOD FOR THE PURIFICATION OF POLY(ARYLENE ETHERS) 有权
    聚丙烯(ARYLENE ETHERS)的纯化方法

    公开(公告)号:US20160075825A1

    公开(公告)日:2016-03-17

    申请号:US14786986

    申请日:2014-04-22

    IPC分类号: C08G65/46 C08G65/40

    摘要: The invention relates to a method for the purification of poly(arylene ethers) of formula (I) in which m=0 to 1.0, n=1.0-m, and Ar1, Ar2, Ar3 and Ar4 independently represent divalent arylene groups. The compound of formula (I) is produced in a first step 1, with a raw product being obtained by bringing a metal or ammonium salt of divalent dihydroxy derivatives of Ar1 or Ar3 into contact with one or more dihalogenated derivatives of Ar2 and/or Ar4, in the presence of a solvent LM1. A precipitate that is present, if appropriate, is separated (step B) so as to obtain a solution L which then undergoes a membrane filtration (step C).

    摘要翻译: 本发明涉及一种纯化式(I)的聚(亚芳基醚)的方法,其中m = 0至1.0,n = 1.0-m,Ar1,Ar2,Ar3和Ar4独立地表示二价亚芳基。 在第一步骤1中制备式(I)化合物,其中通过使Ar1或Ar3的二价二羟基衍生物的金属或铵盐与一种或多种Ar 2和/或Ar 4的二卤代衍生物接触而得到 ,在溶剂LM1存在下。 如果合适,存在沉淀物(步骤B),得到溶液L,然后进行膜过滤(步骤C)。