Accession Number:

ADA229339

Title:

Synthesis of Aromatic Polybenzoxazoles in Trimethylsilyl Polyphosphate (PPSE)

Descriptive Note:

Final technical rept. May 1987-Dec 1988

Corporate Author:

WRIGHT RESEARCH AND DEVELOPMENT CENTER WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1990-09-18

Pagination or Media Count:

20.0

Abstract:

A series of five 6F-polybenzoxazoles were synthesized by the trimethylsilyl-polyphosphate PPSE condensation of various aromatic dicarboxyllic acids with 4,4-hexafluoroisopropylidene bis2-aminophenol. Glass transition temperatures Tg were measured by differential scanning calorimetry DSC. Thermogravimetric analysis and isothermal aging results are also reported for the polybenzoxazoles.

Subject Categories:

  • Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE