温度对氯化胆碱/多元醇型低共熔溶剂物性的影响

doi:10.3969/j.issn.1007-2861.2014.03.005

上海大学学报(自然科学版) ›› 2015, Vol. 21 ›› Issue (03): 384-392.doi: 10.3969/j.issn.1007-2861.2014.03.005

• 环境与化学工程 • 上一篇

温度对氯化胆碱/多元醇型低共熔溶剂物性的影响

何志强, 鄢浩, 王骑虎, 余兴露, 吴凯, 徐毅

收稿日期:2014-03-21 出版日期:2015-06-22 发布日期:2015-06-22
通讯作者: 鄢浩(1974—), 女, 副教授, 博士, 研究方向为绿色化工与技术、流体物性测定等. E-mail: hao-yan@shu.edu.cn E-mail:hao-yan@shu.edu.cn
作者简介:鄢浩(1974—), 女, 副教授, 博士, 研究方向为绿色化工与技术、流体物性测定等. E-mail: hao-yan@shu.edu.cn
基金资助:
国家自然科学基金资助项目(20604015, 21176152)

Effect of temperature on physic-chemical properties of deep eutectic solvent based on choline chloride and polyols

Received:2014-03-21 Online:2015-06-22 Published:2015-06-22

摘要/Abstract

摘要： 合成了4 种氯化胆碱多元醇型低共熔溶剂, 并在303～343 K 时分别测定了4 种低共熔溶剂的密度、黏度、电导率等物性随温度变化的规律. 结果表明: 4 种低共熔溶剂的密度随温度的变化均符合简单的线性关系, 黏度随温度的升高而下降, 电导率随温度的升高而快速增加; 无论是黏度还是电导率, 它们与温度的关系均较好地符合阿伦尼乌斯指数关系. 另外, 根据阿伦尼乌斯公式计算了4 种低共熔溶剂的黏度活化能和电导率活化能, 并采用循环伏安法测定了333 K 时4 种低共熔溶剂的电化学窗口.

关键词: 低共熔溶剂, 电导率, 电化学窗口, 密度, 黏度

Abstract: Four kinds of deep eutectic solvents (DESs) based on choline chloride and polyols were prepared. Density, viscosity and conductivity of the four DESs were measured as functions of temperature in the range of 303～343 K. The results show that the densities of the four DESs sare linearly dependent on temperature. Viscosities decrease with increasing temperature, and conductivities increase rapidly with increasing temperature,both obeying the Arrhenius exponential law. The activation energy of viscosity and conductivity were calculated with the Arrhenius formula. The electrochemical windows of the four DESs were also tested by using cyclic voltammetry at 333 K.

Key words: conductivity, deep eutectic solvent, density, electrochemical window, viscosity

中图分类号:

O 646.54

何志强, 鄢浩, 王骑虎, 余兴露, 吴凯, 徐毅. 温度对氯化胆碱/多元醇型低共熔溶剂物性的影响[J]. 上海大学学报(自然科学版), 2015, 21(03): 384-392.

HE Zhi-Jiang, YAN Gao, WANG Qi-Hu, YU Xin-Lou, WU Kai, XU Yi. Effect of temperature on physic-chemical properties of deep eutectic solvent based on choline chloride and polyols[J]. Journal of Shanghai University（Natural Science Edition）, 2015, 21(03): 384-392.

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温度对氯化胆碱/多元醇型低共熔溶剂物性的影响

Effect of temperature on physic-chemical properties of deep eutectic solvent based on choline chloride and polyols

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