LIGHT-SCATTERING FROM POLYMER-POLYMER-SOLVENT TERNARY-SYSTEMS - SIMPLE AND RELIABLE METHOD FOR ESTIMATING THE INTERACTIONS BETWEEN UNLIKE POLYMERS

There have been several interesting studies on light scattering from polymer 1-polymer 2-solvent ternary systems.1-6 Stockmayer and Stanley1 have measured thelight scattering from the ternary solution in which both of the polymers have large refractive index increments (of the same sign) to evaluate the interactions between the unlike polymers in the dilute limit of polymer concentrations. Such an approach, however, has not been followed in many later studies. Instead, the solvent has been, in most cases, 2-6 chosen to give a nearly zero refractive index increment for one of the polymers so that the scattering from the other polymer has been selectively observed. © 1979, American Chemical Society. All rights reserved.