Preparation of film forming polymer from carbocyclic aromatic diamine and acyl halide of trimellitic acid anhydride
    3.
    发明授权
    Preparation of film forming polymer from carbocyclic aromatic diamine and acyl halide of trimellitic acid anhydride 失效
    由碳环芳族二胺和偏苯三酸酐的酰卤制备成膜聚合物

    公开(公告)号:US3920612A

    公开(公告)日:1975-11-18

    申请号:US59676566

    申请日:1966-11-25

    Inventor: STEPHENS JAMES R

    CPC classification number: H01B3/306 C08G73/121 C08G73/14 H01B3/307

    Abstract: A process for preparing high molecular weight solid polymers which process comprises reacting essentially equimolar amounts of a carbocyclic aromatic primary diamine and an acyl halide derivative of trimellitic anhydride under essentially anhydrous conditions and for a period of time and at a temperature controlled to produce a polymer with free carboxyl groups and amide groups available for further reaction. Also a process for preparing cured polyamide-imide polymers which comprises heating of the soluble polymers prepared as aforementioned at a temperature above 150*C sufficient to effectively and substantially convert such carboxyl and amide groups to imide groups and thereby produce a polyamide-imide which is insoluble in organic polar solvents.

    Abstract translation: 一种制备高分子量固体聚合物的方法,其方法包括使基本上等摩尔量的碳环芳族伯胺和偏苯三酸酐的酰基卤衍生物在基本上无水的条件下反应一段时间并在一定温度下控制以产生具有 游离羧基和酰胺基可用于进一步反应。 还有一种制备固化的聚酰胺 - 酰亚胺聚合物的方法,其包括在高于150℃的温度下加热如上所述制备的可溶性聚合物,足以有效和基本上将这种羧基和酰胺基团转化为酰亚胺基团,从而产生聚酰胺 - 酰亚胺, 不溶于有机极性溶剂。

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