Artículos de revistas
The influence of Na+ on the anilinepropylsilica xerogel synthesis by using the fluoride nucleophilic catalyst
Colloid And Polymer Science. Springer-verlag, v. 281, n. 2, n. 173, n. 177, 2003.
Anilinepropylsilica xerogel was obtained by using an appropriate organosilane and tetraethyl orthosilicate as precursor reagents. The gelation was carried out using HIF 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.2812173177