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    • 4. 发明授权
    • Process, complex and catalyst for preparation of polyphenylene oxide
    • 制备聚苯醚的工艺,复合物和催化剂
    • US4482697A
    • 1984-11-13
    • US494835
    • 1983-05-16
    • Deborah A. Haitko
    • Deborah A. Haitko
    • C07F1/08B01J31/18C08G65/44
    • C08G65/44B01J31/1805B01J2531/16
    • Polyphenylene oxides are prepared by the oxidative coupling of monohydroxy aromatic compounds such as 2,6-xylenol in the presence of copper-halide-amine catalysts in which at least part of the amine component is an aromatic diamine such as N,N'-diphenylethylenediamine, N,N'-diphenyl-N,N'-dimethylethylenediamine, N,N'-diphenylpiperazine or N,N,N',N'-tetramethyl-o-phenylenediamine. Other amines preferably present in the catalyst are a tertiary monoamine such as dimethyl-n-butylamine and a secondary monoamine such as di-n-butylamine. These diamines are characterized by a low rate of consumption during polymerization, and the catalysts prepared therefrom are hydrolytically stable.
    • 聚苯醚通过在卤化铜 - 胺催化剂的存在下,通过氧化偶合单羟基芳族化合物如2,6-二甲苯酚来制备,其中至少部分胺组分是芳族二胺,例如N,N'-二苯基乙二胺 N,N'-二苯基-N,N'-二甲基乙二胺,N,N'-二苯基哌嗪或N,N,N',N'-四甲基邻苯二胺。 优选存在于催化剂中的其它胺是叔胺如二正丁胺和仲正丁胺如二正丁胺。 这些二胺的特征在于聚合期间的低消耗速率,由其制备的催化剂具有水解稳定性。