Effect of N,N-dimethyl acetamide on the critical micelle concentration of aqueous solutions of sodium surfactants

► Molar conductivitis and the critical micelles of several surfactants are studied. ► The study uses mixtures of N, N-dimethyl acetamide and water as solvents. ► It is found that driving force for micelle formation correlates with solvophobicity. ► Thermodynamic parameters are evaluated for micellar system to explain the results.