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|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|
|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.|
|Editor:||Elsevier Sci Ltd|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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