Sanchis Bermúdez, Carlos, Salavagione, Horacio Javier, Arias Pardilla, Joaquín, Morallon, Emilia
Tuning the electroactivity of conductive polymer at physiological pH
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
URI: http://hdl.handle.net/10045/7825
DOI: 10.1016/j.electacta.2006.09.031
ISSN: 0013-4686
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.
Keywords:Conducting polymers, Cyclic voltammetry, Ferrocene/ferrocenium, Sulfonated polyaniline
Elsevier
info:eu-repo/semantics/article