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Water permeation of polymer films. III. High‐temperature polyimides
Author(s) -
Sacher E.,
Susko J. R.
Publication year - 1981
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.1981.070260226
Subject(s) - permeation , polymer , materials science , swelling , diffusion , coating , polymer chemistry , chemical engineering , molecule , composite material , membrane , chemistry , thermodynamics , organic chemistry , biochemistry , engineering , physics
Various freestanding, commercially available polyimides have been found to have virtually identical water permeation properties. However, conformally coating them prevents their relaxing their swelling stresses to accommodate the motions of permeating water molecules, manifesting this inability through changes in the diffusion coefficient.