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Description
  • Polyanilinové filmy byly připraveny z anilin chloridu in situ při pokojové teplotě oxidací dvojsíranem amonným. Byla pozorována změna v charakteru závislosti odporu při konstantní teplotě v průběhu stárnutí, pokud teplota stárnutí překročila 85 °C. Tuto změnu odrážejí také FTIR měření stárnutých vzorků. Odchylky v FTIR spektrech mohou být vysvětleny změnou konformace polymerního řetězce při teplotě kolem 85 °C. Pozorování přechodu u deprotonovaných vzorků ukazuje, že tato jev je vlastní polyanilinu. (cs)
  • Polyaniline films were produced in situ at room temperature from aniline hydrochloride oxidized with ammonium peroxydisulfate. A change in the character of the time dependence of resistivity at fixed temperature was observed when the temperature of ageing exceeded 85 °C. This observation is reflected in the FTIR spectroscopic measurements on the aged samples. The FTIR spectral variation may be explained by a conformational transition of the polymer chain at about 85 °C. The fact that a transition has been found with deprotonated samples indicates that this feature is an inherent property of polyaniline.
  • Polyaniline films were produced in situ at room temperature from aniline hydrochloride oxidized with ammonium peroxydisulfate. A change in the character of the time dependence of resistivity at fixed temperature was observed when the temperature of ageing exceeded 85 °C. This observation is reflected in the FTIR spectroscopic measurements on the aged samples. The FTIR spectral variation may be explained by a conformational transition of the polymer chain at about 85 °C. The fact that a transition has been found with deprotonated samples indicates that this feature is an inherent property of polyaniline. (en)
Title
  • Conformational transition in polyaniline films – spectroscopic and conductivity studies of ageing
  • Konformační přechody v polyanilinových filmech – spektroskopická a vodivostní studie stárnutí (cs)
  • Conformational transition in polyaniline films – spectroscopic and conductivity studies of ageing (en)
skos:prefLabel
  • Conformational transition in polyaniline films – spectroscopic and conductivity studies of ageing
  • Konformační přechody v polyanilinových filmech – spektroskopická a vodivostní studie stárnutí (cs)
  • Conformational transition in polyaniline films – spectroscopic and conductivity studies of ageing (en)
skos:notation
  • RIV/61389013:_____/08:00307314!RIV08-AV0-61389013
http://linked.open.../vavai/riv/strany
  • 428;435
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(IAA400500504), P(IAA4050313), Z(AV0Z40500505), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 361025
http://linked.open...ai/riv/idVysledku
  • RIV/61389013:_____/08:00307314
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • polyaniline; conducting polymer; thin films (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [0D7E29651C01]
http://linked.open...i/riv/nazevZdroje
  • Polymer Degradation and Stability
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 93
http://linked.open...iv/tvurceVysledku
  • Stejskal, Jaroslav
  • Trchová, Miroslava
  • Šeděnková, Ivana
  • Prokeš, J.
http://linked.open...n/vavai/riv/zamer
issn
  • 0141-3910
number of pages
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