Activity Coefficients at Infinite Dilution of Organic Compounds in 1-(Meth)acryloyloxyalkyl-3-methylimidazolium Bromide Using Inverse Gas Chromatography
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- 作者：Fabrice Mutelet ; Jean-Noë ; l Jaubert ; Marek Rogalski ; Julie Harmand ; Michè ; le Sindt ; Jean-Luc Mieloszynski
- 刊名：Journal of Physical Chemistry B
- 出版年：2008
- 出版时间：March 27, 2008
- 年：2008
- 卷：112
- 期：12
- 页码：3773 - 3785
- 全文大小：254K
- 年卷期：v.112,no.12(March 27, 2008)
- ISSN：1520-5207
文摘
Activity coefficients at infinite dilution, 
, of organic compounds in two new room-temperature ionic liquids(n-methacryloyloxyhexyl-N-methylimidazolium bromide (C10H17O2MIM)(Br) at 313.15 and 323.15 K andn-acryloyloxypropyl-N-methylimidazolium bromide(C6H11O2MIM)(Br)) were determined using inverse gaschromatography. Phase loading studies of the net retention volume per gram of packing as a function ofthe percent phase loading were used to estimate the influence of concurrent retention mechanisms onthe accuracy of activity coefficients at infinite dilution of solutes in both ionic liquids. It was found that mostof the solutes were retained largely by partition with a small contribution from adsorption and thatn-alkanes were retained predominantly by interfacial adsorption on ionic liquids studied in this work. Thesolvation characteristics of the two ionic liquids were evaluated using the Abraham solvation parametermodel.
, of organic compounds in two new room-temperature ionic liquids(n-methacryloyloxyhexyl-N-methylimidazolium bromide (C10H17O2MIM)(Br) at 313.15 and 323.15 K andn-acryloyloxypropyl-N-methylimidazolium bromide(C6H11O2MIM)(Br)) were determined using inverse gaschromatography. Phase loading studies of the net retention volume per gram of packing as a function ofthe percent phase loading were used to estimate the influence of concurrent retention mechanisms onthe accuracy of activity coefficients at infinite dilution of solutes in both ionic liquids. It was found that mostof the solutes were retained largely by partition with a small contribution from adsorption and thatn-alkanes were retained predominantly by interfacial adsorption on ionic liquids studied in this work. Thesolvation characteristics of the two ionic liquids were evaluated using the Abraham solvation parametermodel.