Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 117, Issue 18, Pages 5653-5658Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp3112205
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Funding
- Polish Ministry of Science and Higher Education [N N205 132735]
- program Iuventus Plus [IP2011 03 1371]
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Water-soluble ionic liquids may be considered analogues to cationic surfactants with a corresponding surface activity and ability to create organized structures in aqueous solutions. For the first time, the enhanced solubility of the aromatic hydrocarbons, benzene, toluene, and xylene, in aqueous micellar systems of 1-alkyl-3-methylimidazolium chlorides was investigated. Above a critical micelle concentration, a gradual increase in the concentration of aromatic hydrocarbons in the miceller solution was observed. This phenomenon was followed by means of the molar solubilization ratio, the micellar/water partition coefficient, and the number of solubilizate molecules per IL micelle. The molar solubilization ratio for ionic liquid micelles was found to be significantly higher when compared to that of ionic surfactants of similar chain length. The incorporation of the hydrocarbon into the micelle affects also an increase of the aggregation number.
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