<i>m-s-m</i> cationic gemini and zwitterionic surfactants – a thermodynamic analysis of their mixed micelle formation
Aleisha A. McLachlan, Kulbir Singh, Michael McAlduff, D. Gerrard Marangoni, Samantha Marisha Shortall, Shawn Wettig
Abstract
-12 gemini surfactants. From the calorimetric data and the application of RST and Motomura's theory, we have obtained estimates of the excess Gibbs energy and entropy of mixing. An analysis of the three thermodynamic properties suggests that the relative contributions of enthalpic and entropic effects to nonideal behavior for mixed micelles involving gemini surfactants are strongly dependent on the gemini structure.
Topics & Concepts
Cationic polymerizationMicelleChemistryChemical engineeringPolymer chemistryPhysical chemistryAqueous solutionEngineeringSurfactants and Colloidal SystemsPhotochemistry and Electron Transfer StudiesThermodynamic properties of mixtures