Optical anisotropy of excimer emission from solutions of polystyrene

  • Fraser I
  • MacCallum J
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Abstract

The optical anisotropy of excimer emission from polystyrene dissolved in dichloromethane is found to vary with concentration and molecular weight. It is concluded that the time constant for rotation of the dimeric structure increases with increasing both concentration and molecular weight. It is proposed that intermolecular interactions cause this, and such interactions occur well below the concentration corresponding to overlap of macromolecules. © 1987.

Author-supplied keywords

  • Polystyrene
  • energy migration
  • excimers

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Authors

  • I. M. Fraser

  • J. R. MacCallum

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