POLYMERIZATION OF STYRENE ADSOLUBILIZED IN POLYMERIZABLE SURFACTANT BILAYER ON ALUMINA

When styrene is adsolubilized into a bilayer of sodium 10-undecenoate on alumina, the adsolubilized amount of styrene increases with equilibrium concentration of styrene and reaches a plateau. Subsequent polymerization of such a system with UV irradiation in the presence of an initiator enhances dispersion stability of the alumina compared with the polymerization of bilayer of sodium 10-undecenoate alone on the alumina. The dispersion stability is well correlated with the zeta-potential of the alumina. The physicochemical properties of alumina before and after the polymerization have been characterized by using a probe technique and thermal analysis.