Linear and nonlinear viscoelasticity of semidilute solutions of wormlike micelles at high salt content

摘要: The frequency-dependent shear modulus of semidilute aqueous solutions of hexadecyltrimethylammonium bromide (CTAB) in the presence of potassium bromide (KBr) has been measured as a function of surfactant and salt concentrations. The comparison between the experimental data and the recent results of a computer simulation provides an estimate of the time taken for a micelle of the mean length to break. The measured concentration dependences of rheological and kinetic parameters suggest that intermicellar …