DYNAMIC SURFACE-TENSION OF SODIUM TETRADECYL AND HEXADECYL SULFATE-SOLUTIONS AND KINETICS OF MICELLE DISSOCIATION - AN APPROXIMATE THEORETICAL-MODEL AND EXPERIMENTAL RESULTS

An approximate expression for the dynamic surface tension of micellar solutions of ionic SF with a long surface lifetime was obtained A method was developed for calculating the rate constants of micelle dissociation with the results of measurements of the dynamic surface tension. The dynamic surface tension of aqueous solutions of sodium tetra- and hexadecyl sulfates was measured in a wide range of surface lifetimes (from a 001 to 10 sec), temperatures (from 30 to 80-degrees-C), and SF concentrations (from 1 to 200 CMC) by the maximum bubble pressure method The experimental results were in complete agreement with the theoretical findings.