NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Uniaxial Stretching of Poly(keto-ether-imide) FilmsFully-cured aromatic polyimides were prepared from various combinations of five dianhydrides and six diamines. When heated progressively under constant load, most of the films elongated rapidly near their glass transition temperatures. In about half of the nineteen materials, the strain was self-limiting - a possible indication of strain-induced crystallinity. The presence of crystallinity was established unambiguously for one material.
Document ID
20000010765
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Hinkley, Jeffrey A. (NASA Langley Research Center Hampton,VA United States)
Dezern, James F. (NASA Langley Research Center Hampton,VA United States)
Feuz, L. (Eidgenoessische Technische Hochschule Zurich, Switzerland)
Klinedinst, D. (Norfolk State Univ. VA United States)
Date Acquired
September 7, 2013
Publication Date
November 1, 1999
Subject Category
Nonmetallic Materials
Report/Patent Number
L-17918
NASA/TM-1999-209820
NAS 1.15:209820
Funding Number(s)
PROJECT: RTOP 274-00-99-07
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available