Piezoelectricity in polyacrylonitrile

H. Ueda, S. H. Carr

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

The piezoelectric and related properties in ion-doped (NH4NO3, NaNO3) and undoped films of polyacrylonitrile have been measured as a function of temperature. The piezoelectric constants of both ion-doped and undoped films reach a maximum around 80°C and thereafter decrease markedly with temperature. At about this same temperature, a maximum of thermally stimulated discharge current (TSDC) is also observed with both ion-doped and undoped films. These two effects are thought to have a common origin: The randomization of nitrile dipoles in ordered regions. The piezoelectric constant of pre-stretched films is higher than that for unstretched polyacrylonitrile.

Original languageEnglish (US)
Pages (from-to)661-667
Number of pages7
JournalPolymer Journal
Volume16
Issue number9
DOIs
StatePublished - Sep 1984

Keywords

  • Dc electric conductivity
  • Ion-doped (nh4n03, nan03) film
  • Piezoelectricity
  • Polyacrylonitrile
  • Stretched film
  • Thermally stimulated discharge current

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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