Azo Polymers for Reversible Optical Storage. 8. The Effect of the Polarity of the Azobenzene Groups.

Abstract

Poly4-(2-METHACRYLOYLOXY)ETHYLethylaminoazobenzene (pMAEA) was prepared. Its reversible optical storage properties were studied and compared with the properties of previously reported poly(4-(2-(methacryloyloxy)ethyl-azobenzene (pMEA) and poly - nitrophenyl-4'-(2-(METHACRYLOYLOXY)ETHYL ethylamino phenyl diazene (pDR1M). The effect of the dipole moment of the azobenzene moiety in the optical storage properties was studied by comparing the photochemically induced birefringence "writing" and "relaxation" behaviours. The writing and relaxation rates are both in the order pDR1M > pMAEA> pMEA. In addition, pDR1M, which contains donor-acceptor substituents in the azobenzene side chain, exhibits the highest saturation level of optically induced birefringence. The fraction of birefringence conserved after relaxation is lowest for pMEA, which has no donor/acceptor substitutents in the azobenzene side chain, and highest for pDR1M. jg

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Document Details

Document Type
Technical Report
Publication Date
Apr 21, 1995
Accession Number
ADA296606

Entities

People

  • Almeria L. Natansohn
  • Christopher L. Barrett
  • M. S. Ho
  • Paula A. Rochon

Organizations

  • Queen's University

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Alcohols
  • Birefringence
  • Chemical Synthesis
  • Chemistry
  • Dipole Moments
  • Glass Transition Temperature
  • Laser Beams
  • Molecular Weight
  • Optical Properties
  • Optical Storage
  • Polarity
  • Polymeric Films
  • Polymers
  • Reversible
  • Saturation
  • Transition Temperature

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