Synthesis of ZnO/SiO2 core-shell nanoparticles modified with Stearic acid and its application for preparation of poly (methyl methacrylate) nanocomposites

Nano-ZnO/poly(methyl methacrylate)(PMMA) composite latex microspheres were synthesized by insite emulsion polymerization. The interfacial compatibility between nano-ZnO particles and PMMAwere improved by treating the surface of nano-ZnO particles with hydrophobically stearic acid.Stearic acid as a modifying factor in the core-shell SiO2/ZnO nanoparticle affect on the properties and applications. TEM indicated that nano-ZnO particles present in nanosphere and have beenencapsulated in the PMMA phase. FT-IR confirmed that, stearic acid reacted with the nano-ZnOparticle and copolymerized with MMA. It was clearly found from SEM that ZnO nanoparticles can be homogeneously dispersed in the PMMA matrix

Keywords:

ZnO nanoparticle , stearic acid , poly(methylmethacrylate) , nanocomposite