Ionic Liquid Induced Micelle to Vesicle Transition of Single-Chained Anionic Surfactant in Aqueous S

来源 :4th International Supramolecular System Symposium(ISSS2015)( | 被引量 : 0次 | 上传用户:wokaoyouyaozhuce
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The ionic liquid (IL) 1-alkyl-3-methylimidazolium bromide (CnmimBr, n =4, 8, 12), induced micelle to vesicle transition in a dodecyl benzenesulfonate(SDBS) aqueous solution was investigated for the first time by using turbidimetry, dynamic light scattering (DLS), negative-stained and cryogenic transmission electron microscopy (NS-/cryo-TEM), ξ-potential measurements, 1H nuclear magnetic resonance (1H NMR)spectroscopy, Fourier transform infrared spectroscopy, isothermal titration calorimetry (ITC), and density Functional Theory (DFT) calculations.It is found that a minimum IL concentration is required to induce the micelle to vesicle transition, which was confirmed by the TEM images of vesicles (Fig.1).
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