Tuning the electroactivity of conductive polymer at physiological pH

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Title: Tuning the electroactivity of conductive polymer at physiological pH
Authors: Sanchis Bermúdez, Carlos | Salavagione, Horacio Javier | Arias Pardilla, Joaquín | Morallon, Emilia
Research Group/s: Electrocatálisis y Electroquímica de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Química Física
Keywords: Conducting polymers | Cyclic voltammetry | Ferrocene/ferrocenium | Sulfonated polyaniline
Knowledge Area: Química Física | Ciencia de Materiales
Date Created: 14-Sep-2006
Issue Date: 17-Oct-2006
Publisher: Elsevier
Citation: SANCHIS BERMÚDEZ, Carlos, et al. "Tuning the electroactivity of conductive polymer at physiological pH". Electrochimica Acta. Vol. 52, Issue 9 (15 Febr. 2007). ISSN 0013-4686, pp. 2978-2986
Abstract: This article studies the synthesis and properties of copolymers of aniline and both 2-amino (2ABSA) and 3-aminobenzenesulfonic acids (3ABSA)with a molar degree of sulfonation from 3 to 33% for 3ABSA and 10 to 43% for 2ABSA. The small segments of the sulfonic species in the polymer chain (molar fraction = 0.03) confer solubility in alkaline medium (around 0.012 g L−1) and good electrochemical response at pH 7.2 improving those for the unmodified polyaniline (PANI). Taking advantage of the electroactivity at physiological pH, the electrochemical response of redox couples (ferrocyanide(II)/ferricyanide(III) and ferrocene/ferrocenium) has been analysed. The electrochemical response of Cytochrome c (Cyt c)solutions has been also studied at pH 7.2 in presence and absence of ferrocene/ferrocenium species.
Sponsor: Ministerio de Ciencia y Tecnología (MAT2004-1479)y programa Juan de la Cierva.
URI: http://hdl.handle.net/10045/7825
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2006.09.031
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.electacta.2006.09.031
Appears in Collections:INV - GEPE - Artículos de Revistas

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