Photodegradation of Polyimide 1. A Spectral, Viscometric, Chromatographic and Weight Loss Investigation of Polyimides Based on a Perfluorinated Dianhydride

Abstract

The photodegradation of aromatic dianhydride based polyimide films with perfluorinated chromophores in the dianhydride moiety is characterized by significant weight loss and chain cleavage. A conventional polyimide film based on pyromellitic dianhydride yields little decomposition under similar conditions of photolysis. Emission changes on photolysis of polyimide solutions demonstrates and efficient rearrangement to a yield a highly fluorescent species which can be used as an effective tool for following the degradation process.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1989
Accession Number
ADA208507

Entities

People

  • C. E. Hoyle
  • E. T. Anzures

Organizations

  • University of Southern Mississippi

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Spectra
  • Body Weight
  • Chemistry
  • Classification
  • Decomposition
  • Dielectric Polymers
  • Films
  • Measurement
  • Mercury Lamps
  • Military Research
  • Molecular Weight
  • Photochemistry
  • Photolysis
  • Radiation
  • Security
  • United States
  • Viscosity

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  • Polymer Science and Technology