HIGH TEMPERATURE POLYMERS: H-FILM AND SP-POLYMER.

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Abstract:

A study was made of a new family of polyimide polymers H-Film and SP-Polymer which have reasonable thermal stability up to 400C in air. It was found that they show no glass transition temperature and no melting point over the entire temperature range to 500C. The viscoelastic properties reported here are different from those of any polymers studied up to now. Since their molecular structure is reasonably well known, there is reason to believe that other polymers of the stiff chain type will show similar viscoelastic properties. The lack of aliphatic hydrogen makes these polymers peculiarly resistant to oxidation. This feature can also be duplicated in similar families of polymers. These polymers indicate that very great thermal stability and relatively temperature insensitive viscoelastic properties can be achieved by organic polymers. Author

Author(s):
Mair, A. D. ; Shen, M. C. ; Tobolsky, A. V.
Author Organization(s):
PRINCETON UNIV N J FRICK CHEMICAL LAB
Descriptive Note:
Technical rept.,
Annotation:
Viscoelastic properties of two high-temperature polymers: H-Film and SP-Polymer.
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
RLT83
Contract/Grant Number(s):
Nonr1853 07
Project Number(s):
NR356 377
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*HEAT RESISTANT PLASTICS, VISCOELASTICITY), (*POLYAMIDE PLASTICS, VISCOELASTICITY), POLYMERS, FILMS, THERMAL PROPERTIES, TRANSITION TEMPERATURE, MELTING, STABILITY, MOLECULAR STRUCTURE
Keyword(s):
POLYIMIDE RESINS
Report Date:
1964 Aug 01