Nanocompósitos eletroativos de poli-o-metoxianilina e polissacarídeos naturais
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Undergraduate course
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Sociedade Brasileira de Química
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Article
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Acesso aberto
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Abstract
In this work we take advantage of the polyelectrolyte character of some Brazilian native gums to fabricate electrically conductive, nanostructured films. The gums Sterculia urens, (caraia), Sterculia striata (chicha) or Anadenanthera macrocarpa Benth were assembled in conjunction with poly(o-methoxyaniline) (POMA) in the form of layered nanostructured films using the layer-by-layer (LbL) technique. All the LbL films displayed a well-defined electroactivity, as confirmed via cyclic voltammetry. In comparison to POMA LbL films fabricated with conventional polyelectrolytes (viz. poly(vinyl sulfonic acid)-PVS), the presence of the gums in the LbL films increased remarkably the electrochemical stability of the films.
Description
Keywords
natural gums, poly-o-methoxyaniline, layer-by-layer films
Language
Portuguese
Citation
Química Nova. Sociedade Brasileira de Química, v. 30, n. 5, p. 1158-1162, 2007.
