Poly(3,4-ethylendioxythiophene) films were electropolymerized in aqueous medium without using any surfactant, on glassy carbon electrodes. UV/Vis and Raman spectroelectrochemical techniques were used to analyze the degradation of the polymer film occurring at different pH values. Spectroelectrochemistry has proven to be a very useful analytical tool for this purpose, thanks to its ability to provide information not only about the extent of degradation, but also about mechanistic aspects of t he process. From our results we extracted important information about the main factors that play a role in the degradation, inparticular about the influence of repetitive doping and de-doping cycles and of photo-induced processes, as a function of the characteristics of the solution, i.e. of pH
A UV-Visible /Raman spectroelectrochemical study of the stability of poly(3,4-ethylendioxythiophene) films / Zanfrognini, Barbara; A., Colina; A., Heras; Zanardi, Chiara; Seeber, Renato; J., López Palacios. - In: POLYMER DEGRADATION AND STABILITY. - ISSN 0141-3910. - STAMPA. - 96:12(2011), pp. 2112-2119. [10.1016/j.polymdegradstab.2011.09.017]
A UV-Visible /Raman spectroelectrochemical study of the stability of poly(3,4-ethylendioxythiophene) films
ZANFROGNINI, Barbara;ZANARDI, Chiara;SEEBER, Renato;
2011
Abstract
Poly(3,4-ethylendioxythiophene) films were electropolymerized in aqueous medium without using any surfactant, on glassy carbon electrodes. UV/Vis and Raman spectroelectrochemical techniques were used to analyze the degradation of the polymer film occurring at different pH values. Spectroelectrochemistry has proven to be a very useful analytical tool for this purpose, thanks to its ability to provide information not only about the extent of degradation, but also about mechanistic aspects of t he process. From our results we extracted important information about the main factors that play a role in the degradation, inparticular about the influence of repetitive doping and de-doping cycles and of photo-induced processes, as a function of the characteristics of the solution, i.e. of pH
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