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Second-generation PMR polyimidesContinuing research has resulted in development of polyimides with improved thermo-oxidative stability at 589 K. Polyimides are based on dimethyl ester of 4,4'-(hexafluoro-isopropylidene)-bis(phthalic acid) (HFDE) and p-phenylenediamine (PPDA) and NE.
Document ID
19760000359
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Serafini, T. T. (USAAMRDL)
Vannucci, R. D.
Alston, W. B.
Date Acquired
August 8, 2013
Publication Date
January 1, 1977
Publication Information
Publication: NASA Tech Briefs
Volume: 1
Issue: 3
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LEW-12738
Report Number: LEW-12738
ISSN: 0145-319X
Accession Number
76B10359
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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