The Synthesis, Characterization, and Photochemical Crosslinking of an NLO Epoxy Polymer.

Abstract

A Photocrosslinkable second order nonlinear optical (NLO) epoxy polymer, BisphenolA-Nitroaminotolane, containing covalently attached cinnamate side chain substituents (BisA-NAT-CM), was synthesized. After corona poling second harmonic generation (SHG) is used to measure the relaxation of the an isotropy after the electric field is removed. Upon photolysis at 260 nm the cinnamoyl side chains undergo photochemical dimerization to crosslink the NLO polymer. Photobleaching is not a problem under these conditions. The photocrosslinked NLO polymer shows virtually no relaxation over a period of 500 hours at room temperature and good temporal stability at temperatures as high as 110 deg C. jg

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Document Details

Document Type
Technical Report
Publication Date
Jun 20, 1995
Accession Number
ADA295679

Entities

People

  • C. H. Wang
  • James M. Takaca
  • Lei Zhang
  • Theodore Goodson, III

Organizations

  • University of Nebraska-Lincoln Department of Chemistry

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Chemistry
  • Copolymers
  • Decomposition
  • Demographic Cohorts
  • Electric Fields
  • Electronics Industry
  • Films
  • Glass Transition Temperature
  • Materials
  • Optical Properties
  • Photolysis
  • Polymeric Films
  • Polymers
  • Refractive Index
  • Second Harmonic Generation
  • Thin Films
  • Transition Temperature

Fields of Study

  • Chemistry

Readers

  • Materials Science and Engineering.
  • Polymer Science and Technology