3D Lattice Model for the Phase Transition in a Water/Oil/Surfactant/Cosurfactant Mixture

Abstract

We propose the Ising-like model treatment for phase transitions in pseudoquaternary solution of SDS (sodium dodecylsulfate), toluene, butanol (cosurfactant) and brine (NaCl), that was investigated by neutron spin echo spectroscopy [1] by Molle and coworkers. We compare the relaxation time and diffusion coefficient in the different kinds of droplet cellular structures in dependence on the correlation length, evaluated by lattice Monte Carlo technique.