Synthesis of Aromatic Polybenzoxazoles in Trimethylsilyl Polyphosphate (PPSE)

Abstract

A series of five 6F-polybenzoxazoles were synthesized by the trimethylsilyl-polyphosphate (PPSE) condensation of various aromatic dicarboxyllic acids with 4,4'-hexafluoroisopropylidene bis(2-aminophenol). Glass transition temperatures (Tg) were measured by differential scanning calorimetry (DSC). Thermogravimetric analysis and isothermal aging results are also reported for the polybenzoxazoles.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 18, 1990
Accession Number
ADA229339

Entities

People

  • Bruce A. Reinhardt

Organizations

  • Wright Laboratory

Tags

DTIC Thesaurus Topics

  • Acids
  • Air Force
  • Alcohols
  • Body Weight
  • Chlorides
  • Composite Materials
  • Glass Transition Temperature
  • Governments
  • Hydroxides
  • Mass Spectra
  • Materials
  • Materials Laboratories
  • Mechanical Properties
  • Polymers
  • Rigid Rod Polymers
  • Rod Polymers
  • Transition Temperature

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Engineering.
  • Polymer Science and Technology