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Electrochemical preparation and properties of polypyrrole and its blend with poly(vinyl sulfonate) doped with perchlorate anions
Author(s) -
Emamgholizadeh Abbas,
Khoshroo Maryam,
Omrani Abdollah,
Rostami Abbas A.
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.32092
Subject(s) - polypyrrole , cyclic voltammetry , perchlorate , dielectric spectroscopy , materials science , electrochemistry , sulfonate , copolymer , polymer chemistry , glassy carbon , conductive polymer , inorganic chemistry , electrode , chemistry , ion , organic chemistry , polymer , composite material , metallurgy , sodium
In this article, we report polypyrrole (PPy)/poly(vinyl sulfonate) (PVS) and PPy/perchlorate (ClO 4 − ) composite films generated by the electrochemical oxidation of pyrrole on a glassy carbon electrode (GCE) in an aqueous solution. The response of the produced films to an applied potential at 0.7 V was obtained by a cyclic voltammetry study in acetonitrile media. The films were significantly similar in their electrochemical behavior when ClO 4 −ions doped during the redox process. We concluded that with an increasing number of cycles, the anodic current increased because the number of the electroactive participants transported in the copolymer matrix was increased. Theoretical studies based on the Nernst and Butler–Volmer equations indicated that the ClO 4 −ion was transported during the oxidation/reduction process of the PPY/PVS and PPY/ClO 4 −films. The produced films were characterized further by means of IR spectroscopy, electrochemical impedance spectroscopy, and scanning electron microscopy to verify that the anion of ClO 4 −was doped into the copolymer matrix as well. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010