Scaled phase separation in a critical nonionic surfactant solution

The time evolution of phase separation in a critical mixture of non-ionic surfactant, pentaethylene glycol n-decylether and water, was investigated by the time-resolved small-angle light scattering in the spinodal region focusing to the scaling concept. The scaled behavior of the wave number and the intensity corresponding to the spinodal ring and of the scattering function are examined in relation to recent theoretical work. Good agreement was obtained with the dynamic scaling theory.