On the electrochemical and spectroscopic properties of a soluble polyaniline parent copolymer

Copolymers of aniline and 2-ethylaniline can be easily formed by electrochemical or chemical oxidation in acidic medium, but the composition of the polymeric chain differs from the composition of the synthesis solution. Copolymers formed from precursor solutions containing less than 30% (in moles) o...

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Bibliographic Details
Published in:Electrochimica acta 2002-05, Vol.47 (12), p.2005-2011
Main Authors: Schemid, A.L., Lira, L.M., Córdoba de Torresi, S.I.
Format: Article
Language:English
Subjects:
Applied sciences
Chemistry
Copolymerization
d.c. conductivity
Electrochemistry
Exact sciences and technology
General and physical chemistry
Kinetics and mechanism of reactions
Physicochemistry of polymers
Polyaniline
Polymerization
Polymers and radiations
Raman
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Summary:Copolymers of aniline and 2-ethylaniline can be easily formed by electrochemical or chemical oxidation in acidic medium, but the composition of the polymeric chain differs from the composition of the synthesis solution. Copolymers formed from precursor solutions containing less than 30% (in moles) of 2-ethylaniline show intermediate properties between those of the homopolymers, and these properties vary gradually with the amount of 2-ethylaniline units in the copolymeric chain. The properties of those copolymers have been studied by UV–Vis and resonance Raman spectroscopies, cyclic voltammetry, two-probe conductivity and solubility measurements. Results obtained by these techniques corroborate the formation of a block copolymeric material.
ISSN:0013-4686
1873-3859
DOI:10.1016/S0013-4686(02)00026-9