Memory effects above Tg in poled guest/host polymers

Stephan Schüssler, Uwe Albrecht, Ranko Richert, Heinz Bässler

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We present systematic experiments of electric field poling and relaxation of 4-(dimethyl-amino)-4′-nitrostilbene doped at 1 wt % in poly(isobutyl methacrylate) in a sandwich configuration of ITO electrodes using the second harmonic generation technique. A novel ultraslow relaxation mode at temperatures far above the glass transition temperature Tg has been identified qualitatively with a special repoling technique. Isothermal alignment and relaxation of the chromophore orientations show significant differences in their mean rates and in their sensitivity to variations of the field strength and the presence of small amounts of plasticizer molecules. A tentative qualitative model is proposed in which the necessity for considering nonlinear responses is postulated.

Original languageEnglish (US)
Pages (from-to)1266-1268
Number of pages3
JournalMacromolecules
Volume29
Issue number4
StatePublished - Feb 12 1996
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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    Schüssler, S., Albrecht, U., Richert, R., & Bässler, H. (1996). Memory effects above Tg in poled guest/host polymers. Macromolecules, 29(4), 1266-1268.