【摘要】 以1H-咪唑-1-乙酸甲酯和间二溴苄为原料,经烷基化和离子交换反应合成了一种新型的含苯环酸性离子液体(IL2)。以IL2为母体,与酸进行阴离子交换,制备了三种分别含有硫酸根,磷酸根及对甲苯磺酸根离子的酸性离子液体(IL2a~IL2c),其结构经1H NMR,13C NMR,FT-IR和元素分析表征。并用TGA研究了IL2a~IL2c的热稳定性。结果表明,IL2a~IL2c的初始分解温度分别为568.5 K,573.5 K和570.5 K。更多还原

【Abstract】 A novel acid ionic liquid containing aromatic group was( IL2) was synthesized by alkylation and ion exchange reaction of imidazole-1-acetic acid methyl ester with 1,3-bis( bromomethyl)benzene. Three acid anion liquids containing HSO-4,H2PO-4and p-toluenesulfonic( IL2 a ~ IL2c)were prepared by anion exchange of IL2 with H2SO4,H3PO4 and p-Ts OH,respectively. The structures were characterized by1 H NMR,13 C NMR,FT-IR and elemental analysis. The thermal stabilities were investigated by TGA. The TGA results of IL2 a ~ IL2 c showed that the initial decomposition temperature were 568. 5 K,573. 5 K and 570. 5 K,respectively.更多还原