Accession Number:

AD0882034

Title:

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

Descriptive Note:

Summary rept. Nov 1969-Nov 1970

Corporate Author:

GENERAL ELECTRIC CO PHILADELPHIA PA SPACE DIV

Personal Author(s):

• Friedman, Henry L.
• Griffith, George A.

Report Date:

1971-02-01

Pagination or Media Count:

52.0

Abstract:

Research was continued using mass spectrometric thermal analysis MTA to study the thermal degradation of various polymers. Full 200 mass scan runs, limited mass scan runs, and data processing were carried out for a polybenzimidazole, bis benzimidazo benzophenathroline polymer, its ladder polymer, polyquinoxaline and quinoxaline-bis benzimidazo benzophenathroline ladder copolymer. The results were compared with each other and with earlier data. The concept of an improved data processing system was developed, based on the use of analog magnetic tape. The new system is discussed, together with steps taken to implement it.

Descriptors:

• *POLYMERS
• *MASS SPECTROSCOPY
• *DECOMPOSITION
• THERMAL STABILITY
• NITROGEN HETEROCYCLIC COMPOUNDS
• BENZIMIDAZOLES

Subject Categories:

• Plastics
• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE