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Oxidative aging of thermoplastic polyimide films
Author(s) -
Hinkley Jeffrey A.,
Yue Jireh J.
Publication year - 1995
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1995.070571301
Subject(s) - polyimide , isothermal process , materials science , thermoplastic , toughness , glass transition , composite material , work (physics) , polymer science , oxidative phosphorylation , polymer chemistry , polymer , chemistry , thermodynamics , physics , layer (electronics) , biochemistry
Two linear polyimides were subjected to accelerated isothermal aging at temperatures between 300 and 400°C. Losses in toughness correlated well with changes in glass transition temperature ( T g ) of the films, but not with weight loss. Both materials have extrapolated lifetimes of 100,000 h near their T g 's. © 1995 John Wiley & Sons, Inc. This article is a US Government work and, as such, is in the public domain in the United States of America.