Solubility Parameter of Ionic Liquids: A Comparative Study of Inverse Gas Chromatography and Hansen Solubility Sphere
Solubility Parameter of Ionic Liquids: A Comparative Study of Inverse Gas Chromatography and Hansen Solubility Sphere
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离子液体溶解度参数：反气相色谱法与汉森溶解度球的比较研究
DOI：
10.1021/acssuschemeng.9b01093
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发表时间：
2019
影响因子：
8.4
通讯作者：
Ma KongJun
中科院分区：
文献类型：
--
作者：
Zhao Li;Wang Qiang;Ma KongJun
采用两种互补的方法对1-乙基-3-甲基咪唑甲基硫酸盐（[EMM][MeSO 4]）、1-丁基-3-甲基咪唑甲基硫酸盐（[BMIM][MeSO 4]）、1-己基-3-甲基咪唑甲基硫酸盐（[HMIM][MeSO 4]）和1-辛基-3-甲基咪唑甲基硫酸盐（[OMIM][MeSO 4]）4种离子液体的溶解度参数进行了估算。第一种是反相气相色谱法（IGC），它确定了四个离子液体的希尔德布兰德溶解度参数的基础上，一系列公式计算。第二种是汉森溶度球法，该方法基于四种离子液体在30种纯溶剂中的溶解度测试来确定四种离子液体的汉森溶解度参数（HSP）。结果表明，汉森溶度球法的溶度参数值较高，而IGC法的溶度参数值较低。此外，用IGC法对离子液体在不同溶剂中的溶解度进行了计算，结果与汉森溶度球法的计算结果吻合较好。结果表明，IGC法和汉森溶度球法可用于测定离子液体的溶解度参数，对溶剂的选择具有指导意义。
The solubility parameters of four ionic liquids (ILs), 1-ethyl-3-methylimidazolium methyl sulfate ([EMIM][MeSO4]), 1-butyl-3-methylimidazolium methyl sulfate ([BMIM][MeSO4]), 1-hexyl-3-methylimidazolium methyl sulfate ([HMIM][MeSO4]), and 1-octyl-3-methylimidazolium methyl sulfate ([OMIM][MeSO4]), were estimated using two complementary methods. The first is an inverse gas chromatography (IGC) method, which determined the Hildebrand solubility parameters of four ILs based on a series of formulaic calculations. The second is the Hansen solubility sphere method, which determined the Hansen solubility parameters (HSPs) of the four ILs based on solubility testing of four ILs in 30 pure solvents. The results showed that the Hansen solubility sphere method provides higher values of the solubility parameters, while the IGC method presents lower values. In addition, the miscibilities of ILs in various solvents were evaluated by the method of IGC, and the results exhibit good agreement with those derived from the Hansen solubility sphere method. It is confirmed that the IGC and Hansen solubility sphere methods can be used to determine the solubility parameters of the ILs and were useful for solvent selection.