Naphthalic acid or naphthalate containing two sulfonates structure and preparation thereof

A naphthalenediformic acid or naphthalenediformate containing two sulfo groups (or salts) is prepared from naphthalenediformic acid or its salt and fuming sulfuric acid through sulfonating reacting, salting or neutralizing, and purifying. Said product can be used to synthesize high-solubility polyes...

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Bibliographische Detailangaben
Hauptverfasser: DEYUE YAN, JIMING WANG, SHENGBO QING
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:A naphthalenediformic acid or naphthalenediformate containing two sulfo groups (or salts) is prepared from naphthalenediformic acid or its salt and fuming sulfuric acid through sulfonating reacting, salting or neutralizing, and purifying. Said product can be used to synthesize high-solubility polyester, nylon, polybenzimidazole, etc, or to prepare sulfonate polymer. 本发明提供了一种含两个磺酸基(盐)结构的萘二甲酸或萘二甲酸酯及其制备方法。以萘二甲酸、萘二甲酸盐或萘二甲酸酯和发烟硫酸为原料,通过磺化反应、盐析或中和以及产品纯化等步骤可得到白色的含两个磺酸基(盐)结构的萘二甲酸或萘二甲酸酯纯品。这种含两个磺酸基(盐)结构的萘二甲酸或萘二甲酸酯可作为合成溶解性好的聚酯、尼龙、聚苯并咪唑等聚合物的原料,也可以与其它二元酸一起用来制备磺化度可控的磺化聚合物,这种磺化聚合物可作为离子交换膜或质子交换膜的材料。因此,这种新型磺化单体有着广泛的应用前景。