| Full text | |
| Author(s): |
Moura, Silio Lima
;
dos Santos Junior, Jose Ribeiro
;
Correto Machado, Francisco Bolivar
;
Kawachi, Elizabete Yoshie
;
de Araujo Ferrao, Luiz Fernando
Total Authors: 5
|
| Document type: | Journal article |
| Source: | JOURNAL OF ELECTROANALYTICAL CHEMISTRY; v. 757, p. 5-pg., 2015-11-15. |
| Abstract | |
The electropolymerization of dapsone by anodic oxidation is reported for the first time. The conditions in which a non-conducting oligomeric film or a conductive polymeric film of dapsone is formed are also discussed, based on the scan rate and potential window applied. The cyclic voltammetry of dapsone-polymer presented redox activities that have not been shown before, to the authors' knowledge, demonstrating its high electronic conductivity. The electrochemical impedance response of the dapsone-polymer indicates that their admittance is similar to pure and sulfonated polyanilines, while for the dapsone-oligomers is characteristic of insulating materials. Infrared spectroscopy of both oligomers and polymer supports that the polymerization occurs via amino-amino coupling, since no modifications in the aromatic ring is observed. (C) 2015 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 14/24155-6 - Study of electronic states in polycyclic aromatic hydrocarbons and their properties as models of electronic graphene structures |
| Grantee: | Francisco Bolivar Correto Machado |
| Support Opportunities: | Regular Research Grants |