G. D'aprano, M. Leclerc, G. Zotti
Apr 1, 1992
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Journal
Macromolecules
Abstract
The electrochemical polymerization of 2-methylaniline and 2-ethylaniline gave uniform electroactive polymer films which were analyzed in different acidic conditions. It has been found that the fully oxidized polymers undergo an acid-base transition at pH∼0 which leads to the formation of a protonated (bipolaronic) form. This electronic structure is characterized by an absorption band at 630 and 680 nm for poly(2-methylaniline) and poly(2-ethylaniline), respectively. A similar structure was obtained in the fully oxidized poly(N-methylaniline)