Thermochemistry of Polybenzimidazole Foams,

reportActive / Technical Report | Accession Number: ADA306029 | Open PDF

Abstract:

Results are presented of a study of an automatic polybenzimidazole PBI polymer. This study included an analysis of the low-boiling, high-boiling, and solid residue fractions resulting from the pyrolysis and nonflaming oxidative degradation of PBI polymer at temperatures up to 1000 deg C. Both pyrolysis and nonflaming combustion were carried out in a thermoanalyzer, and the effluent gases were trapped on a porous polymer adsorbent. The degradation process was quenched at several intermediate temperatures and the volatile products were analyzed using gas chromatagraphic-mass spectrometric techniques. The solid residues and the virgin polymer were characterized by elemental analysis, and the high-boiling fraction was investigated by chemical-ionization mass spectrometry. jg p3

Author(s):
Einhorn, I. N. ; Chatfield, D. A. ; Wendel, D. J.
Author Organization(s):
UTAH UNIV SALT LAKE CITY FLAMMABILITY RESEARCH CENTER
Pagination:
0037

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Availability: Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NSF/RA-760564, UTEC76-126
Monitor Series:
XD
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.7_Experimentation; JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_1.2_Force Preparation; JCA_1_Force Support
Communities of Interest:
Air Platforms
Descriptor(s):
*THERMOCHEMISTRY, *FOAM, *POLYBENZIMIDAZOLE, TEMPERATURE, DEGRADATION, POLYMERS, SOLIDS, QUENCHING, GASES, COMBUSTION, OXIDATION, CHEMICAL REACTIONS, IONIZATION, VOLATILITY, EFFLUENTS, AUTOMATIC, GAS CHROMATOGRAPHY, PYROLYSIS, RESIDUES, POROUS MATERIALS, ADSORBENTS, BOILING, MASS SPECTROMETRY
Field(s)/Group(s):
Polymer Chemistry, Physical Chemistry, Miscellaneous Materials
Keyword(s):
THERMOANALYZER
Report Date:
1976 Mar 01