Measurement of vapour pressures of ionic liquids and other low vapour pressure solvents

被引：135

作者：

Aschenbrenner, Ortrud ^{[1
]}

Supasitmongkol, Somsak ^{[1
]}

Taylor, Marie ^{[1
]}

Styring, Peter ^{[1
]}

机构：

[1] Univ Sheffield, Dept Chem & Proc Engn, Sheffield S7 2GA, S Yorkshire, England

来源：

GREEN CHEMISTRY | 2009年 / 11卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

GLYCOL DIMETHYL ETHER; THERMODYNAMIC PROPERTIES; 1-BUTYL-3-METHYLIMIDAZOLIUM HEXAFLUOROPHOSPHATE; VOLATILITY; THERMOGRAVIMETRY; TEMPERATURE; EVAPORATION; EQUILIBRIA; ABSORPTION; GLYCEROL;

D O I：

10.1039/b904407h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The vapour pressures of several ionic liquids, liquid polymers and derivatives of glycerol were investigated by thermogravimetric analysis (TGA). The experimental method is described and discussed. Vapour pressure data for various solvents with low vapour pressures are reported at 100-120 degrees C. The thermogravimetric method for vapour pressure measurement is useful for the rapid screening of solvents. Ionic liquids have a low but detectable vapour pressure at 100-120 degrees C. The vapour pressures of liquid polymers such as poly(ethylenimine) and polyethylene glycols are in the same range, which might make these substances a less expensive alternative to ionic liquids.

引用

页码：1217 / 1221

页数：5

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