Synthesis of Rhodamine B Doped Spherical Organo-Silica Particles Using W/O Emulsion

Abstract

We obtained Rhodamine B doped spherical organo-silica particles from the hydrolysis and polycondensation reactions of MTMS in a W/O emulsion composed of Rhodamine B aqueous solution, nonionic surfactant, n-octane and MTMS. The size of the particles is the order of some micrometers. In this work, MTMS was introduced both in oil and water phases of the W/O emulsion. By this method, silanol produced by the hydrolysis reaction at the interface between oil and water phases was successively supplied to the polymerization reaction in the water droplet in the emulsion. As a result, the particle became denser.