Thermophysical Properties of 1-Octyl-3-Methylimidazolium Acetate with Organic Solvents
Thermophysical Properties of 1-Octyl-3-Methylimidazolium Acetate with Organic Solvents
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DOI：
10.1155/2020/6690976
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发表时间：
2020-12
影响因子：
2.7
通讯作者：
Fuxin Yang;Peng Feng
中科院分区：
文献类型：
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作者：
Fuxin Yang;Peng Feng
离子液体（IL）通常具有高粘度。在这项工作中，选择的有机溶剂，即二甲基亚砜，N，N-二甲基乙酰胺，N，N-二甲基甲酰胺，作为稀释剂，以降低IL粘度。研究了IL（即，1-辛基-3-甲基咪唑乙酸盐）与溶剂在常压、303.15 ~ 348.15 K温度范围内的反应。定量评价了有机溶剂对降低IL粘度的作用。计算了混合物的超额性质，分析了IL与溶剂的相互作用。采用硬球模型再现了纯物质和二元混合物的粘度行为。
Ionic liquid (IL) usually possesses high viscosity. In this work, the selected organic solvents, namely, dimethyl sulfoxide, N,N-dimethylacetamide, and N,N-dimethylformamide, were used as the diluents to lower IL viscosity. The thermophysical properties of the densities and viscosities for the binary mixtures of IL (i.e., 1-octyl-3-methylimidazolium acetate) with solvents were studied at normal pressure in the temperature ranges of 303.15 K to 348.15 K. The effects of the organic solvents on lowering IL viscosity were quantitatively evaluated. The excess properties of the mixtures were calculated to analyze the interactions between IL and solvents. The hard-sphere model was employed to reproduce the viscosity behavior of the pure substances and binary mixtures.