Using sodium silicate and organotrialkoxysilane as the silica source and nonionic polyethylene oxide C_(11-15)-H_(23-31)(CH_2CH_2O) _9 (AEO_9) as the structure-directing agent, MSU-type mesoporous organosilica materials that include methyl, 3-aminopropyl group were sythesized. The obtained materials were characterized by XRD. FT-IR, SEM, HRTEM, ~29Si CP MAS NMR, N_2-physisorption and bulk elemental analysis. The effects of synthetic temperature, organotrialkoxysilane content in the precursor and Si/surfactant molar composition in CH_3- MSU system were investigated carefully.

Key words: PRECURSOR, SYNTHESIS, SILICON, POROUS MATERIALS, MATERIAL, ORGANIC COMPOUNDS, SCANNING ELECTRON MICROSCOPES, TRANSMISSION ELECTRON MICROSCOPY, X-RAY DIFFRACTION, FOURIER TRANSFORM