THE RELATIONSHIP BETWEEN STRUCTURE AND THERMAL STABILITY OF NEW HIGH TEMPERATURE POLYMERS

reportActive / Technical Report | Accession Number: AD0474140 | Open PDF

Abstract:

Research aimed at obtaining quantitative relationships between structure and thermal stability of polymers was continued. Observation of further errors in vacuum thermogravimetry and further improvements in mass spectrometric analysis of pyrolysis gases caused the former to be dropped in favor of the latter. Mass spectrometric observations have been aided by providing better pumping, bake-out of the furnace tube in advance of pyrolysis, a horizontal furnace instead of vertical, and improved linear programming. Sample size was reduced from 10 mg. to 1 mg. for polybenzimidazoles. Methods of calibration were developed for both the very volatile and not so volatile products. An automatic data processing system was designed, and is nearly finished. Its inclusion in these experiments is expected to result in a vast increase in efficiency of converting the data to qualtitative and quantitative analysis.

Author(s):
Friedman, H. L.
Author Organization(s):
GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV
Descriptive Note:
Summary rept. Jun 1964-May 1965
Supplementary Note:
DOI: 10.21236/AD0474140
Annotation:
The relationship between structure and thermal stability of new high-temperature polymers.
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFML-TDR-64-274-PT-2
Contract/Grant Number(s):
AF33(657)-11300
Task Number(s):
734004
Project Number(s):
AF-7340
Monitor Series:
TDR-64-274-PT-2, AFML
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_1.2.7_Experimentation; JCA_5_Command and Control; JCA_6.1.3_Switching and Routing; JCA_8.2.4_Leverage Capacities and Capabilities of Security Establishments; JCA_8.2_Shape; JCA_8_Building Partnerships; JCA_6.3_Net Management; JCA_5.3_Planning; JCA_6.1.1_Wired Transmission; JCA_6.1_Information Transport; JCA_6.4.1_Secure Information Exchange; JCA_1_Force Support
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*POLYMERS, *HEAT RESISTANT PLASTICS, *BENZIMIDAZOLES, DEGRADATION, THERMAL STABILITY, MASS SPECTROSCOPY, VACUUM APPARATUS, MOLECULAR STRUCTURE, HALOGENATED HYDROCARBONS, PYROLYSIS, FLUORINE COMPOUNDS, ETHYLENES, THERMOGRAVIMETRIC ANALYSIS
Field(s)/Group(s):
Polymer Chemistry, Atomic and Molecular Physics and Spectroscopy
Report Date:
1965 Oct 01