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Integrative Chemistry Toward Designing Polyvinyl Alcohol/Poly-aniline/Vanadium Oxide Nanocomposite-based Macroscopic Fibers: 1D-Highly Sensitive Alcohol Sensors Bearing Enhanced Toughness

Published online by Cambridge University Press:  15 March 2011

Nicolas Brun ,
Julien Dexmer ,
Céline M. Leroy ,
Hélène Sérier ,
Nathalie Steunou ,
Marie-France Achard  and
Rénal Backov
Nicolas Brun
Affiliation:
Centre de Recherche Paul Pascal UPR 8641 CNRS, PESSAC, France Institut des Sciences Moléculaires UMR 5255 CNRSUniversité Bordeaux 1, TALENCE, France
Julien Dexmer
Affiliation:
Centre de Recherche Paul Pascal UPR 8641 CNRS, PESSAC, France
Céline M. Leroy
Affiliation:
Centre de Recherche Paul Pascal UPR 8641 CNRS, PESSAC, France
Hélène Sérier
Affiliation:
Centre de Recherche Paul Pascal UPR 8641 CNRS, PESSAC, France
Nathalie Steunou
Affiliation:
Laboratoire de Chimie de la Matière Condensée de Paris UMR 7574 CNRS Université Pierre et Marie Curie, PARIS, France
Marie-France Achard
Affiliation:
Centre de Recherche Paul Pascal UPR 8641 CNRS, PESSAC, France
Rénal Backov
Affiliation:
Centre de Recherche Paul Pascal UPR 8641 CNRS, PESSAC, France
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Abstract

Polyvinyl alcohol/Poly-aniline/Vanadium Oxide nanocomposite-based macroscopic fibers have been generated by using a redox reaction addressed while performing an extrusion shaping process. The resulting composites have been thoroughly characterized via a large set of techniques such as SEM, SAXS, XRD and FTIR, in order to determine aniline effects over final materials' structures and properties. Thus, the perturbation of the preferential orientation of the V2O5 nano-ribbons toward the fiber main axis, induced by aniline Red-ox intercalation, has been observed. Also, the partial reduction of V5+ species to V4+ ones, due to the strongly oxidizing character of the first ones toward aniline, has been revealed by Electron Spin Resonance (ESR). Moreover, these fibers are able to detect 5 ppm of ethanol within 3-5 seconds at 42 °C, and possess a toughness of 12 J.g-1.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1135: Symposium CC – Design, Fabrication and Self Assembly of “Patchy” and Anisometric Particles , 2008 , 1135-CC03-11
Copyright
Copyright © Materials Research Society 2009

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References

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