I&EC 110 |
| Certain polymers greatly change their solubility in response to external stimuli such as temperature. Thermo-sensitive polymers and polymer gels have been recognized to have a potential to be applied to a switching or sensing device by using this transition. However, we have not been able to use such polymer gels under atmospheric pressure or high temperature for a long term, because conventional smart gel materials have a problem of the solvent evaporation. In this study, we tried to use phase-behavior of different polymers in 1-ethyl-3-methylimidazolium bis(trifluoromethane sulfone)imide (EMITFSI), which is a typical hydrophobic ionic liquid. It was found that certain polymer gels in EMITFSI change their volume in response to temperature. The polymer gels in the IL (“ion-gels”) are stable over a wide range of temperature, because the thermo-sensitive ion-gels include a non-volatile IL as the solvent. |
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Ionic Liquids: Not Just Solvents Anymore OR Ionic Liquids: Parallel Futures (Sponsored by Green Chemistry and Engineering, Separation Science and Technology and Novel Chemistry with Industrial Applications Sub-Divisions)
8:00 PM-10:00 PM, Sunday, 26 March 2006 Georgia World Congress Center -- Ex. Hall B4, Poster
Division of Industrial and Engineering Chemistry |