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    A process for producing alkoxy and/or aryloxy polyphosphazenes
    2.
    发明公开
    A process for producing alkoxy and/or aryloxy polyphosphazenes 失效
    一种生产烷氧基和/或芳氧基聚磷腈的方法

    公开(公告)号：EP0001562A1

    公开(公告)日：1979-05-02

    申请号：EP78100952.7

    申请日：1978-09-22

    申请人： THE FIRESTONE TIRE & RUBBER COMPANY

    发明人： Fieldhouse, John William ,  Graves, Daniel Frank ,  Cole, William Max ,  Stayer, Jr., Mark Lutz ,  Fenske, Steven Lee

    IPC分类号： C08G79/02

    CPC分类号： C08G79/025

    摘要： The production of phosphazene polymers represented by the general formula
    wherein R and R' are organic radicals hereinafter defined, and wherein n is an integer from 20 upwards of 50,000 wherein one or more kinds of OR or OR' groups is attached to the phosphorus atoms in a substantially linear chain of atternat- ing P and N atoms, the groups when more than one group is present being randomly distributed along the PN backbone, as described in copending United States Patent Application Serial No. 824,004 filed August 12, 1977, is enhanced by an improved procedure forthe separation of the sodium chloride by-product from the derivatized phosphazene polymer. By treating the reaction mixture with carbon dioxide, in the presence of water and preferably with an additional alkali metal salt, agglomeration of the sodium chloride is accomplished, and a clean separation of the NaC1 from the polyphosphazene ester is more readily achieved.

    摘要翻译： 由通式表示的磷腈聚合物的制备其中R和R'是下文定义的有机基团，并且其中n是20至50,000的整数，其中一种或多种OR或OR'基团与 基本上是线性的P和N原子链，当存在多于一个的基团沿PN骨架无规分布时，这些基团如1977年8月12日提交的共同未决的美国专利申请序列号824,004所述是增强的 通过改进的方法从衍生的磷腈聚合物中分离氯化钠副产物。 通过用二氧化碳处理反应混合物，在水存在下并优选用另外的碱金属盐处理，完成氯化钠的团聚，并且更容易实现从聚磷腈酯清洁分离NaCl。