Preferential Solvation. Effect on Polymer Dimensions

Abstract
In this paper we discuss the light scattering theory of preferential solvation. We also present a more recent theory predicting a preferential solvation dependence on polymer molecular weight. These theories have been confirmed by the experimental results of the present work. It was established that the polymer coil dimensions depend on the local solvent composition and not on the analytical one. The local solvent composition can be calculated, in certain cases, from the value of the preferential solvation coefficient.