TITLE

Electrochemical synthesis and structural studies of polypyrroles, poly(3,4-ethylene-dioxythiophene)s and copolymers of pyrrole and 3,4-ethylenedioxythiophene on carbon fibre microelectrodes

AUTHOR(S)
Sarac, A.S.; Sonmez, G.; Cebeci, F.Ç
PUB. DATE
March 2003
SOURCE
Journal of Applied Electrochemistry;Mar2003, Vol. 33 Issue 3/4, p295
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Polypyrrole, poly(3,4-ethylenedioxythiophene) and the copolymer of pyrrole and 3,4-ethylenedioxythiophene films were synthesized electrochemically on carbon fibre microelectrodes (CFME). Deposition conditions on the carbon fibre and the influence of monomer concentrations on the copolymerization, as well as the electrochemistry of the resulting polymers and cop olymers, were studied. Structural studies of the polymers were conducted using different techniques such as cyclic voltammetry, in situ spectroelectrochemistry, FT1R and scanning electron microscopy. The effect of the monomer ratio on the formation of copolymer is reported. A high level of stability to overoxidation was also observed for poly(3,4-ethylenedioxythiophene) as the polymer on this CEME substrate shows limited degradation of its electroactivity at potentials 1.2 V above its half-wave potential.
ACCESSION #
15102834

 

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