文献类型：期刊文献

英文题名：Densities, viscosities, and excess properties of binary mixtures of two imidazolide anion functionalized ionic liquids with water at T = (293.15 to 313.15) K

作者：Chen, Lingxiao[1];Chen, Jiayi[1];Song, Zihao[1];Cui, Guokai[2];Xu, Yingjie[1,3,4];Wang, Xuhong[1];Liu, Jian[1]

机构：[1]Shaoxing Univ, Dept Chem, Shaoxing 312000, Zhejiang, Peoples R China;[2]Henan Normal Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Key Lab Green Chem Media & React,Minist Educ, Xinxiang 453007, Henan, Peoples R China;[3]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2015

卷号：91

起止页码：292

外文期刊名：JOURNAL OF CHEMICAL THERMODYNAMICS

收录：SCI-EXPANDED(收录号：WOS:000361472600036)、、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), and Chinese Postdoctoral Science Foundation (2015M571510).

语种：英文

外文关键词：Ionic liquid; Imidazolide anion ionic liquid; Density; Viscosity; Excess property

外文摘要：Densities and viscosities of binary mixtures of 8-hydrogen-1,8-diazabicyclo[5,4,0]-undec-7-enium imidazolide ([HDBU]IM) and 8-butyl-1,8-diazabicyclo[5,4,0]-undec-7-enium imidazolide ([BDBU]IM) ionic liquids (ILs) with water were measured at temperatures from T = (293.15 to 313.15) K. Excess molar volumes V-E and viscosity deviations Delta eta of the mixtures were calculated to study the intermolecular interactions and structural factors between ILs and water. The results show that the V-E values of the two mixtures are negative over the whole composition range, while the Delta eta values have positive deviations, indicating that the hydrogen bonding interactions between IL and water are dominant in the mixtures. Moreover, the absolute values of V-E (vertical bar V-E vertical bar) of {[HDBU]IM (1) + H2O (2)} system are larger than those of {[BDBU]IM (1) + H2O (2)} system at the same condition, indicating that the hydrogen bonding interactions between [HDBU]IM and water are stronger than those between [BDBU]IM and water. Both vertical bar V-E vertical bar and Delta eta values of the mixtures decrease with the increasing temperature, resulting from the decreasing the hydrogen bonding interactions between IL and water. Other derived properties of the studied systems, such as the apparent molar volumes, partial molar volumes, excess partial molar volumes, Gibbs free energy of activation for viscous flow, and excess Gibbs free energy of activation for viscous flow were also calculated from the experimental values. (C) 2015 Elsevier Ltd. All rights reserved.