Polypyrrole doped with fluoro-metal complexes: thermal stability and structural properties

Yfantis, A; Appel, G; Schmeisser, D; Yfantis, D

dc.contributor.author	Yfantis, A	en
dc.contributor.author	Appel, G	en
dc.contributor.author	Schmeisser, D	en
dc.contributor.author	Yfantis, D	en
dc.date.accessioned	2014-03-01T01:15:04Z
dc.date.available	2014-03-01T01:15:04Z
dc.date.issued	1999	en
dc.identifier.issn	0379-6779	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13318
dc.subject	polypyrrole	en
dc.subject	fluoro-zirconates	en
dc.subject	fluoro-titanates	en
dc.subject	fluoro-aluminates	en
dc.subject	XPS	en
dc.subject	aging	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.classification	Polymer Science	en
dc.subject.other	INSULATOR-TRANSITION	en
dc.subject.other	FILMS	en
dc.subject.other	TEMPERATURE	en
dc.subject.other	TRANSPORT	en
dc.title	Polypyrrole doped with fluoro-metal complexes: thermal stability and structural properties	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0379-6779(99)00140-X	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0379-6779(99)00140-X	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	Chemically produced polypyrrole powders doped with the fluoro-complexes fluoro-aluminates, fluoro-zirconates, fluoro-titanates and fluorides are synthesized and characterized by both XPS and four-probe conductivity measurements. The results show that the polypyrrole powders produced were doped with fluorides and with fluoro-metal complexes (Zr, Ti, Al) of different coordination numbers. Also, a significant incorporation of sulfates originating from the oxidant was determined. The relative concentration of the sulfates and of the respective fluoro-metal complexes is strongly affected by the size of these dopants and much less from their concentration in the solution. The aging process of these polymers is investigated. We have found that there are two main mechanisms, the oxidation of the polymeric chain by water and oxygen as well as the reaction of fluoride ions with low coordination fluoro-complexes to form stable complexes of higher coordination number. In the case of polypyrrole powder doped with fluorides, the mobility of these counter-ions leads to the formation of gaseous species. Polypyrrole powders doped with fluoro-zirconates and fluoro-titanates exhibit both good stability in contrast to those doped with fluoro-aluminates and fluorides. (C) 1999 Elsevier Science S.A. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	SYNTHETIC METALS	en
dc.identifier.doi	10.1016/S0379-6779(99)00140-X	en
dc.identifier.isi	ISI:000083714800009	en
dc.identifier.volume	106	en
dc.identifier.issue	3	en
dc.identifier.spage	187	en
dc.identifier.epage	195	en