초록 |
Methacryloxypropyltrimethoxysilane (MPTMS) have been self-assembled onto surface of silica nanoparticles in the toluene dispersion system for 8h. Then methacryloxypropyl-modified silica nanoparticle (MPSN) were successfully prepared by bulk polymerization in the ethanol solution at 60°C for 14h with adding AIBN initiator. The modification of the ultra-fine particle (SiOx-PAA nano spheres) were investigated via elemental analysis (EA), XPS, FTIR, TGA, SEM and TEM. The mean diameters of the bare silica nanoparticles, MPSN. SiOx-PAA monodisperse nanoparticles were about 25, 35 and 30nm by the SEM. |