초록 |
Composite polymer particle was prepared by heterocoagulation of a anionic particles(silica) onto cationic particles. The latex particles prepared by soap - free emulsion copolymerization of styrene with buthyl acrylate and methacroylcholine chloride, and 2-2'-azobis(2-amidinopropane) dihydro-chloride (v-50). At pH9 z-potential of the heterocoagulated particle was negative. The date was analyzed zeta-potential, zeta size-measurement, scanning electron microscope (SEM) and dynamic light scattering(DLS). |