트리플루오로비닐옥시기를 포함하는 불소계 벤즈이미다졸 단량체 및 이의 제조방법
    1.
    发明授权
    트리플루오로비닐옥시기를 포함하는 불소계 벤즈이미다졸 단량체 및 이의 제조방법 失效
    트리플루오로비닐옥시기를포함하는불소계벤즈이미다졸단량체및이의제조방

    公开(公告)号:KR100744827B1

    公开(公告)日:2007-08-01

    申请号:KR1020060031052

    申请日:2006-04-05

    Abstract: Provided are novel benzimidazole monomers containing trifluorovinyloxy groups with improved solubility against organic solvent and gas permeability, and reduced dielectric constant, while physical properties of polybenzimidazoles are preserved, and polybenzimidazoles membrane prepared by using the same monomers. The benzimidazole monomers containing trifluorovinyloxy groups represented by the formula(1), in which X is a direct bonding, are provided and prepared by reacting hydroxyl benzoate represented by the formula(2) with dibromotetrafluoroethane represented by the formula(3) in the presence of alkali metal or its precursor so as to prepare methyl(bromotetrafluoroethoxy)benzoate represented by the formula(4), reacting the methyl(bromotetrafluoroethoxy)benzoate represented by the formula(4) with amine compounds represented by the formula(5) to prepare imidazole benzoate compounds represented by the formula(6), and oxidizing the imidazole benzoate compounds represented by the formula(6).

    Abstract translation: 本发明提供含有三氟乙烯基氧基的新型苯并咪唑单体,其对有机溶剂和气体渗透性的溶解性提高,并且介电常数降低,同时保留了聚苯并咪唑的物理性质,并且使用相同单体制备了聚苯并咪唑类膜。 其中X是直接键合的式(1)代表的含三氟乙烯氧基的苯并咪唑单体通过使式(2)表示的羟基苯甲酸酯与式(3)表示的二溴四氟乙烷在 (4)表示的甲基(溴四氟乙氧基)苯甲酸甲酯,使由式(4)表示的(溴四氟乙氧基)苯甲酸甲酯与由式(5)表示的胺化合物反应以制备咪唑苯甲酸酯 由式(6)表示的化合物,以及氧化式(6)表示的咪唑苯甲酸酯化合物。

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