Thermally stable microemulsions comprising imidazolium based surface active ionic liquids, non-polar ionic liquid and ethylene glycol as polar phase was written by Kaur, Manvir;Singh, Gurbir;Kumar, Sandeep;Navnidhi;Kang, Tejwant Singh. And the article was included in Journal of Colloid and Interface Science in 2018.Electric Literature of C18H31F6N3O4S2 This article mentions the following:
The ionic liquid (IL), 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, [C2mim][Tf2N], a non-polar phase in conjunction with polar ethylene glycol (EG), forms microemulsions stabilized by the surface active ionic liquid (SAIL), N-methyl-N-alkylimidazolium chloride, [Cnmim][Cl], where n = 8, 12, and 16, plus decanol as co-surfactant. Ternary system phase behavior was examined and three microemulsion zones (polar-in-IL, bi-continuous, IL-in-polar) were identified using elec. conductivity measurements. Alkyl chain length effect on phase behavior is discussed in detail. The one-phase microemulsion region decreased with increased SAIL alkyl chain length. Microstructural characteristics were assessed by Fourier transform IR and NMR spectroscopies. In-microemulsion reverse micelle micropolarity was examined by UV-vis spectroscopy with methyl orange as a polarity probe. Solvent microemulsion solvent relaxation dynamics were assessed by steady-state and time-resolved fluorescence spectroscopy using coumarin 153 (C-153) as fluorescence probe for different microemulsion compositions Dynamic light scattering measurements (DLS) showed the expansion of reverse micelles formed by [Cnmim][Cl] in non-polar [C2mim][Tf2N] upon addition of a polar component. Microemulsions were thermally stable in a wide temperature range as shown by temperature-dependent UV-vis, fluorescence, and DLS measurements. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Electric Literature of C18H31F6N3O4S2).
3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Imidazole derivatives generally have good solubility in protic solvents. Simple imidazole derivatives, such as 1H-imidazole, 2-methyl-1H-imidazole, and 1,2-dimethylimidazole, have very high solubility in water. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Electric Literature of C18H31F6N3O4S2
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem