物理化学学报 >> 2013, Vol. 29 >> Issue (10): 2157-2161.doi: 10.3866/PKU.WHXB201307293

热力学,动力学和结构化学 上一篇    下一篇

质子型离子液体N,N-二甲基乙醇胺丙酸盐的密度、粘度及电导率

李长平1, 李琢1,3, 邹本雪2, 刘青山2, 刘晓霞2   

  1. 1 大连大学环境与化学工程学院, 辽宁 大连 116622;
    2 东北大学化学系, 沈阳 110819;
    3 大连海洋大学理学院, 辽宁 大连 116023
  • 收稿日期:2013-05-21 修回日期:2013-07-29 发布日期:2013-09-26
  • 通讯作者: 刘青山, 刘晓霞 E-mail:liuqingshan@dicp.ac.cn;xxliu@mail.neu.edu.cn
  • 基金资助:

    国家自然科学基金(21176033, 21006007, 21203193, 21273029)和教育部博士点基金(20120042110024)资助项目

Density, Viscosity and Conductivity of Protic Ionic Liquid N,N-DimethylethanolammoniumPropionate

LI Chang-Ping1, LI Zhuo1,3, ZOU Ben-Xue2, LIU Qing-Shan2, LIU Xiao-Xia2   

  1. 1 College of Chemical Engineering and Environment, Dalian University, Dalian 116622, Liaoning Province, P. R. China;
    2 Department of Chemistry, Northeastern University, Shenyang 110819, P. R. China;
    3 Scholl of Sciences, Dalian Ocean University, Dalian 116023, Liaoning Province, P. R. China
  • Received:2013-05-21 Revised:2013-07-29 Published:2013-09-26
  • Contact: LIU Qing-Shan, LIU Xiao-Xia E-mail:liuqingshan@dicp.ac.cn;xxliu@mail.neu.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21176033, 21006007, 21203193, 21273029) and Research Foundation for the Doctoral Programof Higher Education of China (20120042110024).

摘要:

在283.15-333.15 K温度范围内, 测量了质子型离子液体N,N-二甲基乙醇胺丙酸盐(DMEOAP)的密度、粘度及电导率. 讨论了温度对密度、粘度和电导率等物理化学参数的影响. 通过经验和半经验方程得到了该离子液体的热膨胀系数、分子体积、标准摩尔熵及晶格能等热力学性质参数. 由电导率和密度计算出了该离子液体的摩尔电导率. 利用Vogel-Fulcher-Tamman (VFT)方程, 将测量的动力粘度和电导率对温度拟合, 得到了动力粘度和电导率随温度变化方程式.并通过Walden规则, 建立了粘度与摩尔电导率之间的联系.

关键词: 质子型离子液体, 密度, 粘度, 电导率

Abstract:

The density, viscosity, and conductivity of protic ionic liquid (PIL) N,N-dimethylethanolammonium propionate (DMEOAP) were determined in the temperature range of 283.15-333.15 K. The influence of temperature on density, viscosity, and conductivity is discussed. The thermal expansion coefficient, molecular volume, standard molar entropy, and lattice energy of DMEOAP were calculated using empirical and semiempirical equations. The molar conductivity of DMEOAP was determined fromdensity and conductivity data. The temperature dependence of viscosity and conductivity data was fitted using the Vogel-Fulcher-Tammann (VFT) equation. The relationship between molar conductivity and viscosity was determined by the Walden rule.

Key words: Protic ionic liquid, Density, Viscosity, Conductivity

MSC2000: 

  • O642