Orientation motion in glassy polymers

Alexander Z. Patashinski*, Mark A. Ratner

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We present a theory of orientation Brownian motion of a polar particle frozen-in in a polymer glass. The theoretical problem is then one of orientation dynamics in a viscoelastic medium. The glassy material provides, at a short-time scale, an elastic force that returns the orientation to that at time t=0. On larger time scales, this privileged orientation diffuses due to thermal motion. A cascade of orientation motions at all time scales results in a stretched-exponential behavior of the nonlinear optical response function and of other moments of the angular distribution function.

Original languageEnglish (US)
Pages (from-to)6330-6337
Number of pages8
JournalThe Journal of Chemical Physics
Volume101
Issue number7
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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