Abstract
Poly(3,4-dimethoxythiophene) (PDMOT) was electrosynthesized in acetonitrile and aqueous anionic (sodium dodecylsulfate) micellar medium, using the voltammetric and potentiostatic techniques. Two distinct behaviours were found: PDMOT films prepared in acetonitrile were thick, electroactive, and not soluble in organic media, whereas those obtained in the micellar medium were thin and soluble in organic media. PDMOT was characterised by cyclic voltammetry, electronic absorption and fluorescence spectroscopy, IR and MALDI-TOF mass spectrometry. PDMOT electrodeposited in the micellar medium is constituted of short-chain oligomers. The differences of PDMOT properties observed according to the medium of electrosynthesis is discussed in terms of a modified electropolymerization mechanism occurring in micellar solutions.
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