Accession Number : AD0901710

Title :   Kinetics and Mechanisms of Thermal Degradation of Polymers Using Time-of-Flight Mass Spectrometry for Continuous Gas Analysis.

Descriptive Note : Summary rept. Dec 70-Jan 72,

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA RE-ENTRY SYSTEMS DEPT

Personal Author(s) : Friedman, Henry L. ; Griffith, George A.

Report Date : JUN 1972

Pagination or Media Count : 82

Abstract : Research using mass spectrometric thermal analysis (MTA) to study the thermal degradation of various polymers has now been completed. An improved data processing system was developed, which was based on the use of analog magnetic tape, followed by computations with a hybrid computer system. MTA experiments were carried out for polyquinoxaline and for bis benzimidazo benzophenathroline ladder copolymers with quinoxaline, anthraquinone and dibenzofuran. The results were compared with each other and with earlier data. (Author)

Descriptors :   (*POLYMERS, THERMAL PROPERTIES), THERMAL ANALYSIS, DEGRADATION, REACTION KINETICS, MASS SPECTROSCOPY, GAS ANALYSIS, MASS SPECTRA, QUINONES, ALIPHATIC COMPOUNDS, NITROGEN HETEROCYCLIC COMPOUNDS, FURANS, MOLECULAR STRUCTURE, STABILITY, DATA PROCESSING, DIGITAL COMPUTERS, HEAT RESISTANT PLASTICS, THERMOSETTING PLASTICS, THERMAL STABILITY.

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE