Interfacial Composition, Thermodynamic Properties, and Structural Parameters of [bmim][BF _4] + Cetyltrimethylammonium Bromide + Alkanol+Toluene Microemulsions

摘要

The interfacial composition, thermodynamic properties and structural characteristics of [bmim][BF _4] + CTAB + alkanol + toluene microemulsions were studied by the method of dilution under varied temperatures (298 K, 308 K, 318 K). The compositions of surfactant and cosurfactant at the interfacial region, the distribution of cosurfactant between the interfacial region and the continuous oil phase have been estimated. The thermodynamics of transfer of cosurfactant from the continuous oil phase to the interface have been evaluated. The structural parameters viz. radii of the droplet (R _e) and the ionic liquid pool (R _(IL)), the thickness of the interfacial layer (l), the number of droplets (N _d) have also been estimated assuming monodispersity of the spherical droplets.