Study on the thermodynamic properties of ether-functionalized imidazolium-based ionic liquids

被引：17

作者：

Zhao, Ying ^{[1
,2
]}

Wang, Jianying ^{[2
]}

Jiang, Haichao ^{[2
]}

Hu, Yongqi ^{[1
,2
]}

机构：

[1] Tianjin Univ, Inst Chem Engn, Tianjin 30000, Peoples R China

[2] Hebei Univ Sci & Technol, Coll Chem & Pharmaceut Engn, Shijiazhuang 050018, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2014年 / 196卷

关键词：

Ionic liquid; Density; Viscosity; Surface tension; ALKYL CHAIN-LENGTH; PHYSICOCHEMICAL PROPERTIES; THERMOPHYSICAL PROPERTIES; SURFACE TENSIONS; TEMPERATURE; DENSITY; VISCOSITY; MIXTURES; BINARY; CATION;

D O I：

10.1016/j.molliq.2014.04.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ether-functionalized imidazolium-based ionic liquids (EFIILs) exhibit extremely high SO2 solubility. In this paper, a series of EFIILs were prepared, and their structures were confirmed by H-1 NMR. The thermodynamic properties of EFIILs, such as density, viscosity and surface tension, were measured from (298.15 to 343.15)K at atmospheric pressure. The molecular volume, coefficient of thermal expansion, standard entropy, surface entropy, and surface enthalpy were calculated from the experimental data. The results indicate that density, viscosity and surface tension of the specific EFIILs show linear decline as temperature rises, and decrease with the increase of ether chain length of the cation at the same temperature. The surface properties of EFIILs were also discussed systematically. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：314 / 318

页数：5

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