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The effect of high-energy electron radiation on poly(arylene ether)sThin films of four experimental poly(arylene ether)s of similar chemical structure were exposed to 1 MeV electrons while under high vacuum. The films received total exposures of 5 x 10 exp 7 and 1 x 10 exp 9 rads at a dose rate of 5 x 10 exp 7 rads/h and a pressure of 2 x 10 exp -7 torr. Films exposed to 5 x 10 exp 7 rads showed dramatic changes in molecular weight distribution. After exposures of 1 x 10 exp 9 rads the films were only partially soluble in chloroform and exhibited no detectable changes in the glass transition temperatures. Thin-film tensile properties were also altered by the exposure to electron radiation. The effect of the exposures as determined by various analyses is discussed.
Document ID
19930058201
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Connell, J. W.
(NASA Langley Research Center Hampton, VA, United States)
Siochi, E. J.
(NASA Langley Research Center Hampton, VA, United States)
Croall, C. I.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: High Performance Polymers
Volume: 5
Issue: 1
ISSN: 0954-0083
Subject Category
Nonmetallic Materials
Accession Number
93A42198
Funding Number(s)
CONTRACT_GRANT: NAS1-19000
Distribution Limits
Public
Copyright
Other

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