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Radical Scavenger Properties of Some 1,2-Dithiol Compounds Against Electropolymerization of Aniline
Asian Journal of Chemistry,
Vol. 22 No. 1 (2010): Vol 22 Issue 1, 2010
Abstract
The kinetics of aniline electropolymerization was investigated in
acidic H2O/CH3CN solutions and in presence of some 1,2-dithiol compounds.
The reactions were studied under cyclic potential scanning to
measure the electric charge involved between the redox states of the
electrodeposited polymers. The electrochemical growth of electrodeposits
was kinetically dependent upon the dithiol. Generally, in presence
of 1,2-dithiol compounds the growth of electropolymer was slower than
observed for aniline alone. In the presence of 3-aminophenyl-5-(4-
methoxyphenyl)-1,2-dithiol the aniline electropolymerization was
accelerated and led to an improvement in the conductivity of polymer
films. In order to establish the nature of the process, aniline electropolymerization
or co-polymerization with the 1,2-dithiol compounds, electrodeposits
were prepared on vitreous carbon plates and then analyzed by
scanning electron microscopy. The morphology was a fibrillar one and
the analysis showed that sulfur element was inside the electrodeposits.
acidic H2O/CH3CN solutions and in presence of some 1,2-dithiol compounds.
The reactions were studied under cyclic potential scanning to
measure the electric charge involved between the redox states of the
electrodeposited polymers. The electrochemical growth of electrodeposits
was kinetically dependent upon the dithiol. Generally, in presence
of 1,2-dithiol compounds the growth of electropolymer was slower than
observed for aniline alone. In the presence of 3-aminophenyl-5-(4-
methoxyphenyl)-1,2-dithiol the aniline electropolymerization was
accelerated and led to an improvement in the conductivity of polymer
films. In order to establish the nature of the process, aniline electropolymerization
or co-polymerization with the 1,2-dithiol compounds, electrodeposits
were prepared on vitreous carbon plates and then analyzed by
scanning electron microscopy. The morphology was a fibrillar one and
the analysis showed that sulfur element was inside the electrodeposits.
Keywords
le 1
2-Dithiol
Polyaniline
Copolymerization
Inhibition
Cyclic voltammetry.
HADJADJ*, M., DADAMOUSSA, B., ABASQ†, M.-L., SAIDI, M., BURGOT†, J.-L., & DARCHEN‡, A. (2009). Radical Scavenger Properties of Some 1,2-Dithiol Compounds Against Electropolymerization of Aniline. Asian Journal of Chemistry, 22(1), 501–511. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/16670
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