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Electrochemical Modification of Graphite Electrodes with Poly(4‐aminophenol)
Author(s) -
Vieira Sabriunes,
Ferreira Lucas Franco,
Franco Diego Leoni,
Afonso André Santiago,
Gonçalves Rafael Ariza,
BritoMadurro Ana Graci,
Madurro João Marcos
Publication year - 2006
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200651333
Subject(s) - electrode , cyclic voltammetry , materials science , electrochemistry , polymer , scanning electron microscope , graphite , surface modification , conductive polymer , aqueous solution , chemical engineering , polymer chemistry , chemistry , composite material , organic chemistry , engineering
Abstract It was observed the formation of polymeric films derived from 4‐aminophenol on the graphite electrode in aqueous medium (pH 0.5, 8.0 and 12.0). The electrochemical behavior of formed films was studied by voltammetry cyclic and impedance. These analyses indicate that the preparation in acid medium favors the charge transfer rate of the polymer. Polymers formed at pH 8.0 present higher coverage of the electrode surface and impedance increase. Scanning electron microscopy showed that the formed polymer present globular morphology.