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Conductive nanocomposites based on TEMPO-oxidized cellulose and poly(N-3-aminopropylpyrrole-co-pyrrole)

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Bideau, B. et Cherpozat, L. et Loranger, E. et Daneault, C. (2016). Conductive nanocomposites based on TEMPO-oxidized cellulose and poly(N-3-aminopropylpyrrole-co-pyrrole). Industrial Crops and Products, 93 . p. 136-141. ISSN 0926-6690 DOI 10.1016/j.indcrop.2016.06.003

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Résumé

In this paper, conductive composite films were synthetized based on oxidized cellulosic nanofibres (CNFo), 1-(2-cyanoethyl)pyrrole and pyrrole. The 1-(2-cyanoethyl)pyrrole was reduced into N-(3-aminopropyl)pyrrole before being grafted on carboxyl groups of CNFo. Oxidative polymerization of polypyrrole (Ppy) was conducted in an iron(III) chloride (FeCl3) solution, onto the N-(3-aminopropyl)pyrrole grafted. The resulting composite films were characterized by FTIR-ATR Spectroscopy, scanning electron microscopy (SEM) equipped with energy-dispersive x-ray spectroscopy (EDX), tensile strength measurement, thermogravimetric analysis (TGA), wettability and electrical conductivity measurements. The grafting of 1-(2-cyanoethyl)pyrrole played a leading role in improving these properties by increasing potential connections between chains of conducting polymer and cellulose fibres. The outcomes show that the PPy nanoparticles coating on the grafted films increase a lot of characteristics of our composite such as wettability, mechanical properties, thermal protection and more importantly the electrical conductivity which was improved by a 10E5 factor in comparison to the uncoated films. In this condition, this nanostructure could be considered in the design of high-performance electrodes for supercapacitor, battery and sensor applications. © 2016 Elsevier B.V.

Type de document: Article
Mots-clés libres: 1-(2-cyanoethyl)pyrrole grafting oxidized cellulosic nanofibres polypyrrole aromatic compounds cellulose conducting polymers conductive films electric conductivity electrolytic capacitors energy dispersive spectroscopy Fourier transform infrared spectroscopy grafting (chemical) nanocomposite films nanofibers oxidation polypyrroles scanning electron microscopy tensile strength thermogravimetric analysis wetting X ray spectroscopy conductive composites electrical conductivity electrical conductivity measurements energy dispersive X ray spectroscopy FTIR-ATR spectroscopy N-(3-aminopropyl)pyrrole oxidative polymerization composite films composite electrode nanoparticle polymer polymerization sensor thermogravimetry wettability
Date de dépôt: 01 juill. 2021 12:47
Dernière modification: 01 juill. 2021 12:47
Version du document déposé: Post-print (version corrigée et acceptée)
URI: http://depot-e.uqtr.ca/id/eprint/9640

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