A novel technique for preparing organophilic silica by water-in-oil microemulsions
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- Espiard, P., Mark, J.E. & Guyot, A. Polymer Bulletin (1990) 24: 173. doi:10.1007/BF00297314
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A novel technique to prepare ultramicro spherical silica particles containing vinyl groups on their surfaces is presented. This process is a combination of the sol-gel technique and the water-in-oil microemulsion technique in which hydrolysis and condensation of TEOS [Si(OEt)4] and MPS (trimethoxysilylpropylmethacrylate) take place. Spherical silica particles with a size range from 20 to 70 nm were obtained and the surface concentrations of the double bonds per nm2 were from 4 to 7.