Investigation of electrochemical degradation process in polyaniline/polystyrene sulfonated self-assembly films by impedance spectroscopy.
| Autor: | Simões FR; Chemistry Department, Federal University of São Carlos, P.O Box 676, Postal Code 13565-905, São Carlos, SP, Brazil., Pocrifka LA, Marchesi LF, Pereira EC |
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| Jazyk: | angličtina |
| Zdroj: | The journal of physical chemistry. B [J Phys Chem B] 2011 Sep 29; Vol. 115 (38), pp. 11092-7. Date of Electronic Publication: 2011 Sep 08. |
| DOI: | 10.1021/jp2041668 |
| Abstrakt: | In this study, the electrochemical degradation of polyaniline/polystyrene sulfonated (PANI/PSS) self-assembly films was investigated by an electrochemical impedance technique using transmission line models to fit the results. The experiments were performed by polarizing the working electrode at a fixed oxidative potential of 0.55 V. The results showed that changes in the electrochemical behavior of the oxidized PANI/PSS film occurred mainly in the polymer/solution interface by an increase in the charge transfer resistance. (© 2011 American Chemical Society) |
| Databáze: | MEDLINE |
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