Accession Number : AD0741204

Title :   Pyrolytic Degradation of a Phenylated Imide-Quinoxaline Copolymer,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Augl,Joseph M.

Report Date : 03 APR 1972

Pagination or Media Count : 29

Abstract : Three batches of PPIQ, a polyphenylimide- quinoxaline copolymer, were prepared differing in molecular weights and polymer chain endings. Their thermal degradation in vacuum and air was determined by isothermal weight loss measurements. The temperature coefficient of thermal degradation in air was independent of molecular weight. The temperature coefficient was also independent of the type of polymer end-groups. (Author, modified-PL)

Descriptors :   (*HEAT RESISTANT PLASTICS, *DECOMPOSITION), (*REENTRY VEHICLES, HEAT SHIELDS), THERMAL STABILITY, PYROLYSIS, OXIDATION, MOLECULAR WEIGHT, NITROGEN HETEROCYCLIC COMPOUNDS, IMIDES, THERMOGRAVIMETRIC ANALYSIS

Subject Categories : Polymer Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE