The combination of organic and inorganic substructures in organosilicas offers unique possibilities for designing new synthetic routes to nanostructured hybrid materials. We will report our recent results on the nano structuring of porous or bulk hybrid silicas, by taking advantage of the self-organisation properties of the organic moieties within the materials. The control of the pore structure of organosilicas was obtained upon reinforcing the interactions between the molecular precursor and the ionic surfactant during the materials synthesis. Owing to the presence of organic cationic species in the precursor molecule, it allowed the synthesis of organosilicas containing ionic substructures or masked organic functional groups showing pore structure with hexagonal symmetry. By controlling the stacking of the organic substructures, we also generated nanostructured and micro-structured materials with tuned optical and electro-optical properties. It allows a one step preparation of nanostructured and micropatterned thin films from a single informed molecular precursor.

Self-organised organosilicas: Recent results in the structuration of the pores and of the organic substructures

245th National Meeting (2013)

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