Viscosities of Acetate or Chloride-Based Ionic Liquids and Some of Their Mixtures with Water or Other Common Solvents
Viscosities of Acetate or Chloride-Based Ionic Liquids and Some of Their Mixtures with Water or Other Common Solvents
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DOI：
10.1021/je1007235
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发表时间：
2011-01-01
期刊：
影响因子：
--
通讯作者：
Prausnitz, John M.
中科院分区：
文献类型：
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作者：
Fendt, Sebastian;Padmanabhan, Sasisanker;Prausnitz, John M.
对于温度范围（80至120）℃，报道了咪唑鎓类离子液体1-辛基-3-甲基咪唑鎓氯化物[Omim][Cl]、1-己基-3-甲基咪唑鎓氯化物[Hmim][Cl]、1-丁基-3-甲基咪唑鎓氯化物[Bmim][Cl]、1-乙基-3-甲基咪唑鎓氯化物[Bmim][Cl]、1-乙基-3-甲基咪唑鎓乙酸盐[Bmim] [Ac]、1-丁基-3-甲基咪唑鎓乙酸盐[Bmim][Ac]和1-丁基-3-甲基咪唑鎓二氰胺[Bmim] [N（CN）（2）]。基于乙酸盐的离子液体具有比相应的基于氯化物的离子液体低得多的粘度。在25 ° C下，报告了[Bmim][Ac]与稀释剂水、乙腈、二甲基甲酰胺（DMF）和乙二醇的二元混合物的粘度数据。即使是小浓度的稀释剂也会大大降低离子液体的粘度。
For the temperature range (80 to 120) degrees C, viscosity data are reported for imidazolium-based ionic liquids 1-octyl-3-methylimidazolium chloride [Omim][Cl], 1-hexyl-3-methylimidazolium chloride [Hmim][Cl], 1-butyl-3-methylimidazolium chloride [Bmim][Cl], 1-ethyl-3-methylimidazolium chloride [Emim][Cl], 1-ethyl-3-methylimidazolium acetate [Emim] [Ac], 1-butyl-3-methylimidazolium acetate [Bmim][Ac], and 1-butyl-3-methylimidazolium dicyanamide [Bmim] [N(CN)(2)]. Acetate-based ionic liquids have considerably lower viscosities than the corresponding chloride-based ILs. At 25 degrees C, viscosity data are reported for binary mixtures of [Bmim][Ac] with diluents water, acetonitrile, dimethylformamide (DMF), and ethylene glycol. Even a small concentration of diluent very much reduces the viscosity of an ionic liquid.