Organosilsesquioxane Particles Prepared by Controlled Sol-Gel Process or Heterocondensation with Colloidal Silica Particles: A Novel Route Towards Nanoporous Silica Particles by a Templating Effect |
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Authors: | Pierre M Chevalier Duan L Ou |
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Abstract: | Hybrid organic-inorganic particles containing labile organic templates have been prepared by either controlled Sol-Gel processing or co-condensation of colloidal silica particles with organosilicon precursors. Chemical removal of the templating organic spacer led to monomodal, microstructured porous silica particles exhibiting up to 50% porosity. Particle size and distribution, and porosity varied depending upon the process and the chemistry used to remove the porogen organic groups. |
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Keywords: | sol-gel silsesquioxanes hybrid particles porous silica particles |
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