Preparation and Characterization of a Benzobistriazo lophenanthroline Polymer

Abstract

A benzobistriazolo phenanthroline polymer was prepared by the polycondensation of 2,6-pyridinediyldihydrazidine with 1,4,5,8-naphthalene tetracarboxylic acid or 1,4,5,8-naphthalene tetracarboxylic dianhydride in polyphosphoric acid. Inherent viscosities in the range of 0.25-0.87 dl./g. were recorded. Polymer structure was established by elemental and infrared analysis. The polymer was a reddish-brown powder soluble in sulfuric-or methane sulfonic- acid. Onset of breakdown during thermogravimetric analysis in a nitrogen atmosphere occurred at 475C.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1971
Accession Number
AD0726545

Entities

People

  • Robert C. Evers

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Acids
  • Air Force
  • Alcohols
  • Anhydrides
  • Atmospheres
  • Composite Materials
  • Differential Thermal Analysis
  • Infrared Spectra
  • Materials
  • Materials Laboratories
  • Molecular Weight
  • Nitrogen
  • Spectra
  • Spectroscopy
  • Sulfonic Acids
  • Thermal Analysis
  • Viscosity

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology