TEMPERATURE EFFECTS ON THE LUMINESCENCE OF BENZOPHENONE IN POLYMERS,

Abstract

Using rigid polymer matrices, it was possible to confirm that benzophenone exhibits a delayed thermal fluorescence at 300K and have shown that the spectrum of this emission is an approximate mirror image of the structured singlet-singlet n,pi* absorption spectrum. Lifetimes of benzophenone in various polymers of styrene and its derivatives at 300K are compared with the previously reported lifetime in benzene. It was concluded that, if solvent-solute interactions are responsible for the anomalously short phosphorescence lifetime in benzene, then this interaction has a strong steric requirement. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1970
Accession Number
AD0711068

Entities

People

  • A. Ray Calloway
  • Peter F. Jones

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Alkenes
  • Emission
  • Fluorescence
  • Ketones
  • Luminescence
  • Optical Phenomena
  • Phosphorescence
  • Sorption
  • Spectra

Fields of Study

  • Chemistry

Readers

  • Molecular Photonics/Laser Physics
  • Quantum Chemistry
  • Spectroscopy.