色谱

色谱

• 研究论文 • 上一篇    下一篇

反气相色谱测定双阳离子型离子液体的溶解度参数

王军*, 张真真, 杨许召, 李刚森   

  1. Zhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface &Interface Science, Zhengzhou 450002, China
  • 收稿日期:2008-11-12 修回日期:2009-01-12 出版日期:2009-07-30 发布日期:1982-06-25
  • 通讯作者: 王军

Determination of solubility parameter for dicationic ionic liquid by inverse gas chromatography

WANG Jun*, ZHANG Zhenzhen, YANG Xuzhao, LI Gangsen   

  1. Zhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface &Interface Science, Zhengzhou 450002, China
  • Received:2008-11-12 Revised:2009-01-12 Online:2009-07-30 Published:1982-06-25
  • Contact: WANG Jun

PDF

692

被引次数

36

摘要： 采用反气相色谱法,于343.15 K到363.15 K温度下测定了双阳离子型离子液体1,10-双(N-甲基咪唑鎓)癸烷六氟磷酸盐［C10(MIM)2］［PF6］2的溶解度参数。以正辛烷、正十二烷、正十四烷和正十六烷为探针溶剂,计算了探针溶剂的特性保留体积(V0g)、摩尔吸收焓(ΔHS1)、无限稀释摩尔混合焓(ΔH∞1)、摩尔蒸发焓(ΔHv)、无限稀释活度系数(γ∞12)以及探针溶剂与［C10(MIM)2］［PF6］2的Flory-Huggins相互作用参数(χ∞12),测得该离子液体的溶解度参数(δ2)为15.01 (J\5cm~3)1/2。这一结果对研究离子液体的溶液性质和应用有指导作用。

关键词: 反气相色谱, 溶解度参数, 双阳离子型离子液体 , 无限稀释活度系数

Abstract: An inverse gas chromatographic method has been used to measure the solubility parameter of the dicationic ionic liquid, 1,10-bis(3-methylimidazolium-1-yl)decane hexafluorophosphate ［C10(MIM)2］［PF6］2, at the absolute temperatures from 343.15 K to 363.15 K. The test probe solvents were n-octane, n-dodecane, n-tetradecane, and n-hexadecane. The specific retention volumes of the solvents (V0g), the molar enthalpy of sorption (ΔHS1), the partial molar enthalpy of mixing at infinite dilution (ΔH∞1), the molar enthalpy of vaporization (ΔHv), the activity coefficients at infinite dilution (γ∞12), Flory-Huggins interaction parameters (χ∞12) between ［C10(MIM)2］［PF6］2 and probe solvents were obtained. The solubility parameter (δ2) of ［C10(MIM)2］［PF6］2 was determined as 15.01 (J\5cm~3)1/2, which was of great importance to the study of the solution behavior and application for ionic liquid.

Key words: activity coefficients at infinite dilution, dicationic ionic liquid , solubility parameters, inverse gas chromatography