文献类型：期刊文献

英文题名：Physicochemical properties of binary mixtures of 1,1,3,3-tetramethylguanidine imidazolide ionic liquid with water and alcohols

作者：Ye, Fangfang[1];Zhu, Jiahong[1];Yu, Keke[1];Zhu, Ruyu[1];Xu, Yingjie[1,2,3];Chen, Jiayi[1];Chen, Lingxiao[1]

机构：[1]Shaoxing Univ, Dept Chem, Shaoxing 312000, Zhejiang, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2016

卷号：97

起止页码：39

外文期刊名：JOURNAL OF CHEMICAL THERMODYNAMICS

收录：SCI-EXPANDED(收录号：WOS:000373488800005)、、EI(收录号：20160701926799)、Scopus(收录号：2-s2.0-84957594909)、WOS

基金：The authors are grateful for the financial supports from the National Natural Science Foundation of China (No. 21406140), the National Natural Science Foundation of Zhejiang Province (No. LY14B060002), Chinese Postdoctoral Science Foundation (2015M571510), and Undergraduate Scientific and Technological Innovation Project of Shaoxing University.

语种：英文

外文关键词：Ionic liquid; 1,1,3,3-Tetramethylguanidine imidazolide; Physicochemical property

外文摘要：In this work, densities and viscosities of aqueous solution of 1,1,3,3-tetramethylguanidine imidazolide ([TMG]IM) ionic liquid were measured at temperatures from T = (293.15 to 313.15) K. Volumetric properties including excess molar volumes V-E, apparent molar volumes, partial molar volumes, and excess partial molar volumes were calculated from the experimental density. Viscosity deviations Delta(eta), Gibbs energy and excess Gibbs energy of activation for viscous flow were deduced from the viscosity. Moreover, electrical conductivities k and refractive indices of binary mixtures of [TMG]IM with water and alcohols were determined at 298.15 K. The results show that V-E values of {[TMG]IM (1) + water (2)} mixture are negative over the whole composition range, while Delta(eta) and refractive index deviations Delta n(D) values exhibit positive deviations, indicating that the hydrogen bonding interaction between [TMG]IM and water is dominant. The absolute values of V-E and Delta(eta) of the mixture decrease with the increasing temperature. The V-E, Delta(eta), and Delta n(D) can be fitted by the Redlich-Kister equation with satisfactory results. The concentration-dependent k of the studied systems are fitted to Casteel-Amis equation, showing that the k values of {[TMG]IM (1) + water (2)} mixture are much higher than those of {[TMG]IM (1) + ethanol (2)} mixture. (C) 2016 Elsevier Ltd. All rights reserved.