Micelle Formation of Cationic Surfactants in Aqueous Solution Measured by Surface Tension, Conductivity and Fluorescence Measurements
Abstract：The detailed micellization behavior of cationic surfaetants 3-p-nonylphenoxy-2- hydroxypropyl trimethyl ammonium halide （NPTAX, X = Cl, Br, I） was studied by surface tension, conductivity and steady-state fluorescence measurements in the temperature range of 15 to 50 ℃. The critical micelle concentrations （cmc）, thermodynamics of mieellization （△Gm）, degree of counterion dissociation （a^0） at the eme and aggregation number （Nagg） were determined from experimental data. The effects of temperature and concentrations of surfactant on their various properties in aqueous solution have been investigated, respectively.
Keywords：cationic surfactantcritical micelle concentrationmicelle degree of counterionmicelle aggregation number
Publication Date：2012-01-01
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：6( 34-38,51 )