Trimethylsilyl Derivatives of Alkyltrimethylammonium–Kanemite Complexes and Their Conversion to Microporous SiO2 Materials

Abstract

Alkyltrimethylammonium–kanemite complexes, having three dimensional SiO₂ networks, were allowed to react with a trimethylsilylating reagent to form the trimethylsilylated derivatives. The three dimensional SiO₂ networks were retained after trimethylsilylation. The calcined products obtained from the trimethylsilylated products had about 840–880 m² g⁻¹ in specific surface areas and micro pores with 22–33 Å in average pore diameter. These values were slightly smaller than those of the calcined products obtained from alkyltrimethylammonium–kanemite complexes, which indicated the effect of the trimethylsilyl groups.