Determination of Activities of Mixed Micelles Involving Neutral Surfactants
Citations Over TimeTop 15% of 2002 papers
Abstract
Mixed surfactant systems involving dodecyltrimethylammonium, dodecyldimethylamine-N-oxide, dodecylmaltoside, and dodecylsulfobetaine were analyzed. An ion-selective electrode specific to surfactants was used. Monomer concentrations, micelle composition, and activity coefficients in the micelles were determined by a thermodynamical treatment of the experimental data, without using an a priori model for micellization. The activity coefficients are then discussed in terms of the regular solution theory (RST), and the interaction parameter β is compared to the prediction of a molecular thermodynamic theory (Langmuir 1992, 8, 2690; 1997, 13, 3968; 1998, 14, 1618). When RST is not satisfying, an extension of RST is used (Langmuir 1999, 15, 3411). Experiments and theories are in fairly good agreement, and reasons for discrepancies are examined.
Related Papers
- → Micelle molecular weight of dodecyldimethylammonium chloride in aqueous solutions, and the transition of micelle shape in concentrated NaCl solutions(1980)115 cited
- → Micelle Formation and Micellar Size by a Light Scattering Technique(1988)10 cited
- → Rethinking the Use of Linear Forms of the Langmuir Isotherm in Adsorption Modeling to Calculate Langmuir Isotherm Parameters(2023)4 cited
- STUDY OF MICELLE FORMATION OF CTAB BY MICROCALORIMETRIC METHOD(2002)
- MICELLAR SHAPES AND SOLUBILIZATION PROPERTIES OF DETERGENT SOLUTIONS(1984)