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Degradation of microporous polyaniline film by UV-ozone treatment
Adam Mickiewicz University Poznan.
Adam Mickiewicz University Poznan.
Adam Mickiewicz University Poznan.
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry . Linköping University, The Institute of Technology.
2009 (English)In: POLYMER DEGRADATION AND STABILITY, ISSN 0141-3910 , Vol. 94, no 3, 350-354 p.Article in journal (Refereed) Published
Abstract [en]

Thin microporous polyaniline films in the emeraldine-base form (PANI-EB) have been prepared electrochemically at a potential of 0.8 V. The effect of ozone treatment on the structural changes of polyaniline thin films has been investigated using X-ray photoelectron spectroscopy, SEM and EPR. Surface analysis showed that oxidation occurs mainly at the carbon atoms, resulting in the formation of C=O and COOH species. The degradation reaction seems to be preferentially directed towards the quinoneimine units. At high extent of carbon oxidation, UV-ozone treatment may involve the direct oxidation of the nitrogen atoms to form -NOx species.

Place, publisher, year, edition, pages
2009. Vol. 94, no 3, 350-354 p.
Keyword [en]
Polyaniline, X-ray photoelectron spectroscopy, Ozone treatment, Degradation
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-17496DOI: 10.1016/j.polymdegradstab.2008.12.005OAI: diva2:209870
Available from: 2009-03-27 Created: 2009-03-27 Last updated: 2009-03-27

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Fahlman , Mats
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Surface Physics and Chemistry The Institute of Technology
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