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Imide/Arylene Ether CopolymersNew imide/arylene ether copolymers prepared by reacting anhydride-terminated poly(amic acids) with amine-terminated poly(arylene ethers) in polar aprotic solvents. Each resulting copolymer may have one glass-transition temperature or two, depending on chemical structure and/or compatibility of block units. Most of copolymers form tough, solvent-resistant films with high tensile properties. Films cast from solution tough and flexible, and exhibit useful thermal and mechanical properties. Potentially useful as moldings, adhesives, or composite matrices. Because of flexible arylene ether blocks, these copolymers easier to process than polyimides.
Document ID
19910000635
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Jensen, Brian J.
(NASA Langley Research Center, Hampton, VA.)
Hergenrother, Paul M.
(NASA Langley Research Center, Hampton, VA.)
Bass, Robert G.
(Virginia Commonwealth Univ.)
Date Acquired
August 14, 2013
Publication Date
December 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 12
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LAR-14159
Accession Number
91B10635
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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