EFFECTIVE INTERACTION POTENTIAL BETWEEN COLLOIDAL PARTICLES IN A SOLUTION

In a solution containing microions from an added electrolyte, the effe ctive interaction potential between colloidal particles is studied on the basis of the primitive model. The approximation is employed that t he correlations of solvent-particles with microions can he neglected, and the potential is calculated with the use of the mean spherical app roximation solution of the Ornstein-Zernike equation with the Yukawa c losure. In the case of the hydrophobic colloid, the theory is discusse d in comparison with the DLVO theory and a role of the solvent-mediate d potential is emphasized.