Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/52667
Type: Artigo de periódico
Title: 3-n-propyl-1-azonia-4-azabicyclo[2.2.2]octanechloride/silica hybrid polymer. A morphologic study in relation to the organic content
Author: Arenas, LT
Aguirre, TAS
Langaro, A
Gushikem, Y
Benvenutti, EV
Costa, TMH
Abstract: The 3-n-propyl-1-azonia-4-azabicyclo[2.2.2]octanechloride/silica hybrid polymer was synthesized, using the sol-gel method, by varying the organic content. The samples were characterized using infrared spectroscopy (FTIR), scanning electron microscopy (SEM), N-2 adsorption-desorption isotherms and thermogravimetric analysis. The polymer morphology could be controlled by the choice and amount of the organic precursor added. The dispersion of the organic/inorganic phases was shown to be in molecular or nanometric level. The organic content elevation produced a decrease in the surface area and pore volume due to the organic pore blocking effect. (C) 2003 Published by Elsevier Ltd.
Subject: sol-gel
xerogels
dabco
Country: Inglaterra
Editor: Elsevier Sci Ltd
Rights: fechado
Identifier DOI: 10.1016/S0032-3861(03)00652-9
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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