Behaviour of a binary solvent mixture constituted by an amphiphilic ionic liquid, 1-decyl-3-methylimidazolium bromide and water

Synthesis and micellar properties of 1-decyl-2,3-dimethylimidazolium bromide surfactant in water and water–ethanolamine mixtures at 298.15 K

“…It is well known in the literature that the CMC values depend on the employed technique [34]. On the other hand, the obtained CMC values for ddmimBr in water are close to those obtained in the literature for dmimBr [9][10][11], and different from the one reported by Baltazar et al [35]. From the plots of apparent molar volumes of ddmimBr, ϕ V , against the reciprocal of molality, m −1 , we have determined the ϕ mic V value from the intercept of the line at concentrations above the CMC and the ϕ 0 V from the intercept of the line at concentrations below the CMC.…”

“…In recent years, new classes of molecules, designated ionic liquids (salts with melting points below 100 • C), have emerged and considerable attention has been drawn to their behavior in aqueous phases [2][3][4][5][6][7]. Recently, amphiphilic association structures were found in the binary mixtures of water with 1-alkyl-3-methylimidazolium bromide and tetrafluoroborate ionic liquid [8][9][10][11][12]. In this paper, we present a thermodynamic study of the 1-decyl-2,3-methylimidazolium bromide (ddmimBr) surfactant in water (W) and mixed solvents.…”

Effects of Ionic Liquid [Me3NC2H4OH]+[ZnCl3]− on γ‐Radiation Polymerization of Methyl Methacrylate in Ethanol and N,N‐Dimethylformamide

“…The binary mixture may be composed of dispersed aggregates behaving like a mixture of two phases that interpenetrate themselves. [22] Since the ionic liquid applied in the present work is a complexing mixture of an organic cation and an inorganic anion, it is possible to form three microregions with the addition of RTIL: organic enriched region, RTIL enriched region, and a wellmisciblized region. The structure and fraction distribution of three regions will be altered by changing the organic/ RTIL ratio.…”

Effect of alkyl chain length and head group on surface active and aggregation behavior of ionic liquids in water

“…A proper and comprehensive understanding, especially of the adsorption behavior at air/water interface, and aggregation or association phenomenon in aqueous and non-aqueous solutions is a prerequisite before ILs are explored for surfactant based applications [9]. The surface, interfacial and aggregation characteristics of ILs based on 1-alkyl (butyl to hexadecyl)-3-methylimidazolium bromide, or chloride in water have been extensively studied by using various methods such as surface tension [12,13,16,[21][22][23][25][26][27], electrical conductivity [14][15][16][17][18][19][20][21][22][23][24][25]31,32], fluorescence [16,20,21,25,26], 1 H NMR [19,26,28], steady state fluorescence spectroscopy [25,29], isothermal titration calorimetry [30]. The main focus of these investigations were to determine the critical aggregation concentrations (CAC) mostly at 298.15 K. Some discrepancies between the CAC data as determined from different methods for the same IL were noted [31] and these discrepancies can be attributed to the presence of impurities of the sample as well as to the sensitivity of the method used.…”