Effect of the doping medium on blends of polyurethane and polyaniline
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Data
2001-03-15
Autores
Malmonge, J. A.
Campoli, C. S.
Malmonge, L. F.
Kanda, DHF
Mattoso, LHC
Chierice, G. O.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
Flexible and free-standing films from blends of polyurethane, based on castor oil, and polyaniline were obtained with various compositions by casting. Significant increase on conductivity followed by a considerable decrease on doping time was obtained by doping the films in N,N-dimethylformamide (DMF) solution with p-toluene sulphonic acid (TSA) or HCl instead of the conventional doping in aqueous solution. This doping efficiency is proposed to be due to an improved swelling of the blend structure caused by the solvent. The electrical conductivity increases significantly upon polyaniline content increase reaching 10(-2) S/cm for a polyaniline content of about 10% (w/w).
Descrição
Palavras-chave
conducting polymers, polyaniline, doping, blends, polyurethane
Como citar
Synthetic Metals. Lausanne: Elsevier B.V. Sa, v. 119, n. 1-3, p. 87-88, 2001.