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研究了磺酸铜型树脂在乙醇和正己烷中对3种芳胺的吸附行为。结果表明:磺酸铜型树脂在乙醇和正己烷中对苯胺、N-甲基苯胺和N,N-二甲基苯胺具有较好的吸附性能,且随着吸附质N原子上取代基的增加,吸附的亲和性逐渐减小,表现出明显的吸附选择性。因此,磺酸铜型树脂有望应用于在非水体系中吸附分离或去除某些难溶于水的天然产物如生物碱等物质。
The adsorption behavior of copper sulfonate resins on three aromatic amines in ethanol and n-hexane was studied. The results show that the copper sulfonate resin has good adsorption properties for aniline, N-methylaniline and N, N-dimethylaniline in ethanol and n-hexane. With the increase of the substituent on the N atom of the adsorbate , The affinity of adsorption decreased gradually, showing obvious adsorption selectivity. Therefore, sulfonic acid copper resin is expected to be used in non-aqueous systems for adsorption separation or removal of certain water-insoluble natural products such as alkaloids and other substances.