Method for the preparation of a poly(arylene ether), and related compositions
    4.
    发明申请
    Method for the preparation of a poly(arylene ether), and related compositions 失效
    制备聚(亚芳基醚)的方法及相关组合物

    公开(公告)号:US20060069229A1

    公开(公告)日:2006-03-30

    申请号:US10953723

    申请日:2004-09-29

    IPC分类号: C08G65/38 C08F6/00

    CPC分类号: C08G65/46 C08G65/44

    摘要: A method for preparing a poly(arylene ether) with a reduced level of powder fines is described. In one embodiment, the method comprises oxidatively coupling a monohydric phenol in the presence of a solvent and a complex metal catalyst, to produce a poly(arylene ether) resin; and then removing a portion of the solvent to produce a concentrated solution having a cloud point Tcloud. The concentrated solution is then combined with an anti-solvent to precipitate the poly(arylene ether) in the form of a precipitation mixture. The concentrated solution usually has a temperature of at least about (Tcloud−10° C.) immediately before it is combined with the anti-solvent. The precipitation mixture has a temperature of at least about (Tcloud−40° C.) after its formation. Related poly(arylene ether) copolymers are also described.

    摘要翻译: 描述了一种制备具有降低粉末粉粒度的聚(亚芳基醚)的方法。 在一个实施方案中,该方法包括在溶剂和复合金属催化剂的存在下将一元酚氧化偶联以产生聚(亚芳基醚)树脂; 然后除去溶剂的一部分以产生具有浊点T云的浓缩溶液。 然后将浓缩溶液与抗溶剂组合以沉淀出沉淀混合物形式的聚(亚芳基醚)。 在与抗溶剂组合之前,浓缩溶液通常具有至少大约(T 1云)-10℃的温度。 沉淀混合物在其形成之后的温度至少约为(T -40℃)。 还描述了相关的聚(亚芳基醚)共聚物。