Date: March 11, 2010
Creator: Revelli, Anne-Laure; Mutelet, Fabrice; Jaubert, Jean-Noël; Garcia-Martinez, Marina; Sprunger, Laura M.; Acree, William E. (William Eugene) et al.
Description: This article discusses the study of ether-, alcohol, or cyano-functionalized ionic liquids using inverse gas chromatography. Abstract: Activity coefficients of 52 organic compounds in four ionic liquids (ILs), 1,3-dimethoxyimidazolium bis((trifluoromethyl)sulfonyl)imide, 1-(methylethylether)-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide, 1-ethanol-3-methylimidazolium bis((trifluoromethyl)-sulfonyl)imide, and 1-(3-cyanopropyl)-3-methylimidazolium dicyanamide, were measured using inverse gas chromatography from (312 to 353) K. The retention data were also converted in gas-to-IL partition coefficients and water-to-IL partition coefficients using the corresponding gas-to-water partition coefficients. Both sets of partition coefficients were analyzed using the modified Abraham solvation parameter model. The derived equations correlated the experimental gas-to-IL and water-to-IL partition coefficient data to within (0.09 and 0.14) log units, respectively.
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