Electrochemical behaviour of 3, 4-ethylenedioxythiophene functionalized by a sulphonate group. Application to the preparation of poly(3, 4-ethylenedioxythiophene) having permanent cation-exchange properties

• Published in: Journal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 443; no. 2; pp. 217 - 226
• Main Authors: Stéphan, Olivier, Schottland, Philippe, Le Gall, Pierre-Yves, Chevrot, Claude, Mariet, Clarisse, Carrier, Michel
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 20.02.1998; Elsevier Science
• Subjects: Applied sciences; Chemistry; Electrochemistry; Exact sciences and technology; Functionalized monomer; General and physical chemistry; Ion-exchange; Kinetics and mechanism of reactions; Physicochemistry of polymers; Poly(3,4-ethylenedioxythiophene); Polymerization; Polymers and radiations; Water-soluble oligomer; Ion-exchange; Poly(3,4-ethylenedioxythiophene); Functionalized monomer; Water-soluble oligomer; Cationic complex; Lithium Perchlorates; Glass; Ammino complex; Experimental study; Electrochemical polymerization; Carbon; Sulfonate; Electrodes; Watersoluble compound; Thiophene derivative polymer; Cation exchange membrane; Ruthenium Complexes; Aqueous solution; Electrochemical reaction; Uranyl; Glassy state; Functional group; Modified material
• ISSN: 1572-6657; 1873-2569
• DOI: 10.1016/S0022-0728(97)00548-2

We report the synthesis of a new 3,4-ethylenedioxythiophene monomer functionalized by a sulphonate group. Its electrochemical polymerization in water allows the generation of water-soluble oligomers. Furthermore the electrochemical polymerization of an equimolar aqueous solution of this new monomer and the unsubstituted one produces a polymer film having permanent cation-exchange properties. This phenomenon has been investigated with hexamine ruthenium(III) and uranyl cationic species using electrochemical and radiochemical methods.