Mechanisms of Polymer Curing and Thermal Degradation

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Abstract:

The results of a TGMS analysis of a series of polymers are presented. Sample weight loss and volatile gas evolution during programmed heating of polymers are correlated in order to investigate thermal stability and the mechanism of thermal degradation. Thermal polymerization at 434 K of bis4-3- ethynylphenoxyphenylsulfone I in the initial stages of reaction and of 4-3- ethynylphenoxyphenyl phenyl sulfone II up to 90 conversion was found to yield polymers with number-average molecular weights approaching 3000.

Author(s):
Jones, E. Grant ; Pickard, James M. ; Pedrick, Donald L.
Author Organization(s):
SYSTEMS RESEARCH LABS INC DAYTON OH RESEARCH APPLICATIONS DIV
Descriptive Note:
Interim technical rept. Jun 1978-Jun 1979
Pagination:
0127

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFML-TR-79-4182
Contract/Grant Number(s):
F33615-77-C-5175
Task Number(s):
04
Project Number(s):
2419
Monitor Series:
TR-79-4182, AFML
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.3_Human Capital Management; JCA_1_Force Support; JCA_1.3.2_Personnel Management; JCA_1.2.5_Lessons Learned; JCA_6.1.2_Wireless Transmission; JCA_6.1_Information Transport; JCA_1.2.7_Experimentation
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*POLYMERS, *CURING, *THERMAL DEGRADATION, SCANNING, REACTION KINETICS, POLYMERIZATION, MOLECULAR WEIGHT, THERMAL STABILITY, MASS SPECTROSCOPY, GASES, THERMOCHEMISTRY, GRAVIMETRIC ANALYSIS, LOSSES, HEAT, PHENYL RADICALS, CALORIMETERS, SULFONES
Field(s)/Group(s):
Polymer Chemistry
Keyword(s):
ACETYLENE OLIGOMERS, DIFFERENTIAL SCANNING CALORIMETRY, PHENYL SULFONES, S L CHANGE 8320, PE62102F, WUAFML24190404
Report Date:
1979 Dec 01