Microemulsions with novel hydrophobic ionic liquids
The phase behaviour of different ternary mixtures containing water, a hydrophobic ionic liquid (IL) and Triton X-100 have been examined as a function of surfactant concentration and temperature, maintaining equal volumes of water and IL. In all previously published studies on water-IL microemulsions...
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| Veröffentlicht in: | Soft matter 2011-01, Vol.7 (15), p.6805-6810 |
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| creator | Porada, Jan H. Mansueto, Markus Laschat, Sabine Stubenrauch, Cosima |
| description | The phase behaviour of different ternary mixtures containing water, a hydrophobic ionic liquid (IL) and Triton X-100 have been examined as a function of surfactant concentration and temperature, maintaining equal volumes of water and IL. In all previously published studies on water-IL microemulsions the hydrophobic IL contained hexafluorophosphate (PF6-) as anion. As this anion is not stable towards hydrolysis, our aim was to replace it by the hydrolysis-stable anion bis-triflimide (NTf2-). The challenge was to find a suitable cation, which, in combination with the chosen anion, forms microemulsions with an efficiency equal or greater than reported values. The cation leading to the most efficient microemulsion was [ali336]+, which is based on the phase transfer catalyst aliquat 336. Thus the IL [ali336]NTf2 turned out to be a suitable choice for a hydrophobic room temperature IL which forms microemulsions of efficiencies comparable to those of water-[bmim]PF6 systems, whilst being stable towards hydrolysis. |
| doi_str_mv | 10.1039/c1sm05821e |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1744-683X |
| ispartof | Soft matter, 2011-01, Vol.7 (15), p.6805-6810 |
| issn | 1744-683X 1744-6848 |
| language | eng |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Aliquat Anions Cations Hydrolysis Ionic liquids Microemulsions Phase transfer catalysts Triton |
| title | Microemulsions with novel hydrophobic ionic liquids |
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