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|Type:||Artigo de periódico|
|Title:||The Influence Of Na+ On The Anilinepropylsilica Xerogel Synthesis By Using The Flouride Nucleophilic Catalyst|
|Abstract:||Anilinepropylsilica xerogel was obtained by using an appropriate organosilane and tetraethyl orthosilicate as precursor reagents. The gelation was carried out using HF and NaF as catalysts. The presence of Na+ (when NaF was used) resulted in a decrease in the final organic content of the materials. This effect was interpreted as an inhibition of the organosilane polycondensation possibly due to the Na+ interaction with the SiO- groups of the hydrolyzed organosilane. The presence of Na+ also results in morphological changes in the xerogels.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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