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LaRC-RP41: A Tough, High-Performance Composite MatrixNew polymer exhibits increased toughness and resistance to microcracking. Cross-linking PMR-15 and linear LaRC-TPI combined to provide sequential semi-2-IPN designated as LaRC-RP41. Synthesized from PMR-15 imide prepolymer undergoing cross-linking in immediate presence of LaRC-TPI polyamic acid, also undergoing simultaneous imidization and linear chain extension. Potentially high-temperature matrix resin, adhesive, and molding resin. Applications include automobiles, electronics, aircraft, and aerospace structures.
Document ID
19910000450
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Pater, Ruth H. (NASA Langley Research Center, Hampton, VA.)
Johnston, Norman J. (NASA Langley Research Center, Hampton, VA.)
Smith, Ricky E. (NASA Langley Research Center, Hampton, VA.)
Snoha, John J. (NASA Langley Research Center, Hampton, VA.)
Gautreaux, Carol R. (Analytical Services and Materials, Inc.)
Reddy, Rakasi M. (Old Dominion University)
Date Acquired
August 14, 2013
Publication Date
September 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 9
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LAR-14338
Accession Number
91B10450
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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