Study of the Pyrrol/Diphenylamine Copolymer by FT-IR spectroscopy and conductivity

Fabiele Cristina Dias, Carlos Alberto Perez, Henrique de Santana

Abstract


The main goal of this study was to analyze the physical properties of the copolymer formed by the electrochemical deposition of the polydiphenylamine (PDPA) on polypyrrole (Ppy) and Ppy on PDPA,  in different conditions, through the characterization of the materials formed by the resonant Raman, FT-IR and conductivity techniques. The interactions among the species which are present in the new copolymer structure and the changes in electronic conductivity, were verified. The copolymer was also synthesized electrochemically in the presence of iodide species and the material was characterized by FT-IR spectroscopy and conductivity. The role of the dopant was studied in the process of charge transfer between the copolymer-dopant, acting in the stabilization of the species in the polymer backbone and the increase of the electronic conductivity.

Keywords


Polydiphenylamine; Polypyrrole; Copolymer; Conducting polymer.



DOI: http://dx.doi.org/10.5433/1679-0375.2004v25n1p9

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Semin., Ciênc. Exatas Tecnol.
Londrina - PR - Brazil
E-ISSN: 16790375
DOI: 10.5433/1679-0375
Email: seminaexatas@uel.br
 
This journal is licensed with a license Creative Commons Attribution-NonCommercial 4.0 International.