STATIC AND DYNAMIC LIGHT-SCATTERING FROM MULTICOMPONENT POLYMER MIXTURES PS PDMS/PMMA/TOLUENE/

The static and dynamic scattering properties of multicomponent polymer mixtures are examined starting from the theoretical formalism based o n the random phase approximation (RPA) for multicomponent polymer mixt ures in the presence of a low molecular weight solvent. The results ar e compared with the light scattering data reported recently by Strazie lle and coworkers [1] for polystyrene/polydimethylsiloxane/polymethyl methylate/toluene mixtures. The present paper is an extension of the w ork published recently by these authors [2] and considers data obtaine d from several concentrations of PMMA. It also includes a discussion o f the dynamic properties which are obtained by quasi-elastic light sca ttering.