Electro-oxidation of 2,2 '-dithienylketone

摘要

The anodic electropolymerization process of 2,2' dithienyl ketone in acetonitrile or dichloromethane electrolytic solutions on Pt, Au or SnO2 electrodes, has been studied by means of cyclic voltammetry and potential step methods. The electrochemical response indicates that the electro-oxidation process is slightly solvent dependant, but the electrode substrate determines the film quality. Nucleation and growth mechanisms were established and give rise of the film morphology and in thin layers. FTIR, EPMA and XPS analysis indicates that during the electro-oxidation process oligomerization is produced through the thiophene rings, while the carbonyl groups remain intact. Electrodeposit conductivity values allows one to suggest their use in the preparation of electroluminescent diodes. (C) 2003 Kluwer Academic Publishers. [References: 54]