Use of p-toluenesulfonic acid for the controlled grafting of alkoxysilanes onto silanol containing surfaces: preparation of tunable hydrophilic, hydrophobic, and super-hydrophobic silica.

@article{Garca2007UseOP,
  title={Use of p-toluenesulfonic acid for the controlled grafting of alkoxysilanes onto silanol containing surfaces: preparation of tunable hydrophilic, hydrophobic, and super-hydrophobic silica.},
  author={N. Garc{\'i}a and E. Benito and J. Guzm{\'a}n and P. Tiemblo},
  journal={Journal of the American Chemical Society},
  year={2007},
  volume={129 16},
  pages={
          5052-60
        }
}
  • N. García, E. Benito, +1 author P. Tiemblo
  • Published 2007
  • Chemistry, Medicine
  • Journal of the American Chemical Society
  • The modification of Aerosil 200 has been carried out using methoxysilanes in toluene reflux, with p-toluenesulfonic acid as the catalyst. Both trimethoxyalkyl silanes (methyl, ethyl, propyl, butyl, hexyl, octyl, and octadecyl) and trialkylmethoxy silanes (trimethyl and dimethyloctyl) have been used. The surface has been studied by 29Si NMR, 13C NMR, elemental analysis, thermogravimetry, water contact angle, and BET analysis. When incorporating trimethoxysilanes, a plateau of modification was… CONTINUE READING
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