Pal, Amalendu; Punia, Renu published the artcile< Mixed micellization behaviour of tri-substituted surface active ionic liquid and cationic surfactant in aqueous medium and salt solution: Experimental and theoretical study>, Recommanded Product: 1-Hexadecylpyridin-1-ium chloride, the main research area is tetradecyldimethylimidazolium cetyltrimethylammonium sodium bromide aqueous medium micellization physiochem property.
The aim of the present study is to investigate the mixed micellization behavior of trisubstituted surface active ionic liquid (SAIL) 1-tetradecyl-2,3-dimethylimidazolium bromide and cationic surfactant CTAB in aqueous solution and in the presence of inorganic salt, NaBr using the conductivity, steady-state fluorescence and 1H NMR measurements. The degree of counter-ion dissociation (g), critical micelle concentration (cmc), various thermodn. parameters of micellization (ΔG0m, ΔH0m and ΔS0m) have been evaluated from conductivity measurements. The aggregation number (Nagg) of mixed micelle has been ascertained from steady-state fluorescence quenching indicate that the contribution of CTAB was always more than that of SAIL. Various mixed micellar parameters such as ideal cmc (cmc*), activity coefficients (f1 and f2), micellar mole fraction of CTAB in mixed and ideal state (Xm1andXideal1), interaction parameter (βm) and excess Gibbs free energy of micellization (ΔGex) have been calculated at temperatures of (298.15, 308.15 and 318.15) K. Mixed micellar parameters (cmc*, Xm1, and ΔGex) reveal non-ideal behavior of the mixed system and magnitude of interaction parameter (βm) becomes more neg. in the presence of salt. 1H NMR shed light on the electrostatic interactions between CTAB and SAIL in mixed state.
Journal of Molecular Liquids published new progress about Electric conductivity. 123-03-5 belongs to class pyridine-derivatives, and the molecular formula is C21H38ClN, Recommanded Product: 1-Hexadecylpyridin-1-ium chloride.