COMPLEX-FORMATION BETWEEN POLY(METHACRYLI C ACID) AND DODECYLPYRIDINIUM CHLORIDE IN THE PRESENCE OF METHYL-ORANGE

The effect of organic molecules that are capable of interacting with s urfactants on the binding of surfactant ions with oppositely charged p olyelectrolytes and the structure of polymer-colloidal complexes were studied. Depending on the ratio between the components in aqueous solu tions of the mixtures of methyl orange and the surfactant, a variety o f colloidal products can be formed. Their composition varies from stoi chiometric to that of the micelles that incorporate the surfactant and methyl orange in different amounts. Adding small amounts of methyl or ange (5 x 10(-5) mol/l) to a polyelectrolyte solution reduces the crit ical concentration for association of surfactant ions on the polyanion , The morphologies of micelles formed by the free surfactant and those immobilized on the polyanion are different.