An innovative series of layered nanostructured aminoalkylsilica hybrid material
An innovative series of silica-based hybrid materials containing pendant cationic ammoniumpropyl groups was obtained using the sol-gel method, by varying the molar ratio of the inorganic and organic precursors. Thermogravimetric analysis showed that samples were thermally stable up to 260 ºC. Results obtained by X-ray diffractometry, transmission electron microscopy, 29Si nuclear magnetic resonance and elemental analysis were compatible with a silsesquioxane layered structural model showing basal distances up to 5.4 nm, containing amorphous silica in the interlayer space.
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Main Authors: | Trindade,Carolina M. da, Stoll,Gabriela C., Pereira,Altair S., Costa,Tania M. H., Benvenutti,Edilson V. |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Química
2009
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000400017 |
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