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À propos de : Pickering Stabilization as a Tool in the Fabrication of ComplexNanopatterned Silica Microcapsules        

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  • Pickering Stabilization as a Tool in the Fabrication of ComplexNanopatterned Silica Microcapsules
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  • Complex silica-based microcapsules with nanopatterned features were made using Pickering stabilization as afabrication tool. A sequential two-step liquid−liquid interface-driven assembly process was employed using Laponiteclay discs and Laponite armored polystyrene latex particles as solids to stabilize emulsion droplets on two differentlength scales. The discotic Laponite particles and poly(diethoxysiloxane) were used as silica sources. The ethoxygroups of the poly(diethoxysiloxane) were removed via a triethylamine-catalyzed interfacial hydrolysis and sol−gelreaction. The organic components were removed via a calcination step. The two-stage templating route providedsiliceous microcapsules of which the capsule walls were decorated on either the outside or inside with nanocapsulescomposed of Laponite clay.
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