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Materials, Methods & Technologies, Volume 10, 2016

DIELECTRIC CHARACTERISTICS OF POLYANILINE BLENDS. COMPARISON OF DIFFERENT METHODS.
Milan Neubert, Jan Nedbal, Jaromír Fahnrich, Jaroslav Stejskal
Pages: 602-611
Published: 22 Jul 2016
Views: 633
Downloads: 287
Abstract: Main attention of the contribution is devoted to polyaniline-poly(vinyl alcohol) cryogels and to the dependence of their dielectric characteristics on temperature and history (ageing, desorption), especially to non-Arrhenius behaviour around freezing point. Results obtained using standard contact methods (mainly broadband frequency analyser Novocontrol Alpha in frequency range 10-2–10+7 Hz) were compared with data obtained by developed contactless resonance method based on evaluation of eddy currents in samples exposed to changing magnetic field.
Keywords: conducting cryogels, polyaniline, dielectric properties, contactless method
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