The nanocomposites formed by mesoporous silica and surfactants or polymers were characterized using solid state NMR. Using MCM-41 silica systems with extended and structured interphases, the organization of the surfactants on silica surface at low temp. and the reactivity of cetyltrimethylammonium inside the nanopores was examd. Some monomers (Me methacrylate, caprolactam) have been absorbed in MCM-41 and polymd. inside the pores, also poly(ethylene oxide) has been included in the nanochannels. The conformations and mobility of the confined polymers and silica polymer interactions are discussed.
Simonutti, R., Comotti, A., Bracco, S., Sozzani, P. (2002). Solid state NMR characterization of polymers and surfactant molecules as confined to porous silica materials. In J.P. Fraissard (a cura di), Magnetic Resonance in Colloid and Interface Science (76) (pp. 139-153). Kluwer Academic Publishers.
Solid state NMR characterization of polymers and surfactant molecules as confined to porous silica materials
SIMONUTTI, ROBERTO;COMOTTI, ANGIOLINA;BRACCO, SILVIA;SOZZANI, PIERO ERNESTO
2002
Abstract
The nanocomposites formed by mesoporous silica and surfactants or polymers were characterized using solid state NMR. Using MCM-41 silica systems with extended and structured interphases, the organization of the surfactants on silica surface at low temp. and the reactivity of cetyltrimethylammonium inside the nanopores was examd. Some monomers (Me methacrylate, caprolactam) have been absorbed in MCM-41 and polymd. inside the pores, also poly(ethylene oxide) has been included in the nanochannels. The conformations and mobility of the confined polymers and silica polymer interactions are discussed.
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