Degradation of microporous polyaniline film by UV-ozone treatment
2009 (English)In: POLYMER DEGRADATION AND STABILITY, ISSN 0141-3910 , Vol. 94, no 3, 350-354 p.Article in journal (Refereed) Published
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.
Polyaniline, X-ray photoelectron spectroscopy, Ozone treatment, Degradation
IdentifiersURN: urn:nbn:se:liu:diva-17496DOI: 10.1016/j.polymdegradstab.2008.12.005OAI: oai:DiVA.org:liu-17496DiVA: diva2:209870