A Direct Route to Active Silica Nanoparticles
Monodisperse silica particles containing available active C=C bonds were directly prepared by a simple two-step sol-gel method. In the first step the hydrolysis of vinyltrimethoxysilane (VTMS) was performed under acidic conditions in an aqueous solution. In the second step the condensation of the siloxane precursors progressed under basic conditions, resulting in production of silica nanoparticles containing available active C=C bonds. The products were characterized using SEM and FTIR.
Chunli BAI, Sishen XIE, Xing ZHU
X.Q. Chen et al., "A Direct Route to Active Silica Nanoparticles", Solid State Phenomena, Vols. 121-123, pp. 65-68, 2007