Showing papers by "Harold L. Friedman published in 1986"

An integral equation approach to structure and dynamics of ionic colloidal solutions

Abstract: The Ornstein–Zernike equation with either the hypernetted chain (HNC) closure or a composite HNC/Percus–Yevick (PY) closure approximation is applied to the primitive model of highly asymmetric electrolytes that mimic ionic micellar solutions. There is substantial agreement of the calculated partial structure factor with the small angle neutral scattering data for a lithium dodecylsulfate solution. New theoretical results are applied to calculate the ionic self‐diffusion coefficients for Smoluchowski models with equilibrium structures obtained from the HNC approximation. Fair agreement with experimental data is found for the small ions whereas the theory predicts too fast diffusion for the colloidal particles.