Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 117, Issue 2, Pages 943-952Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/app.31476
Keywords
electropolymerization; kinetics; cyclic voltammetry; thermal analysis; mechanism
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Electropolymerization of p-phenylenediamine (pPD) on Pt-electrode from a deoxygenated aqueous acid medium was carried out using cyclic voltammetry technique. The kinetic parameters were calculated by means of electrochemical data. The experimentally obtained kinetic equation was R(P,E) = k(E) [monomer]1.23 [acid 1.24 [electrolyte]0.94 from the value of the anodic current density. The apparent activation energy (E(a)) is found to be 65.1 kJ mol(-1). The obtained polymer films have been characterized by X-ray diffraction, elemental analysis, scanning electron microscopy, UV-vis, and IR spectroscopy. The conductivity of the polymer pellets is 6.3 x 10(-7) S cm(-1). The mechanism of the electrochemical polymerization reaction has been discussed. TGA is used to confirm the proposed structure and determination of the number of water molecules in the polymeric chain unit. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 943-952, 2010
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