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Water permeation of polymer films. II. Dual‐mode absorption in teflon FEP
Author(s) -
Sacher E.,
Susko J. R.
Publication year - 1979
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.1979.070240907
Subject(s) - permeation , adsorption , polymer , materials science , dual mode , chemical engineering , absorption (acoustics) , water vapor , molecule , polymer chemistry , composite material , chemistry , membrane , organic chemistry , biochemistry , engineering , aerospace engineering
DuPont Teflon FEP has been shown to permeate water vapor through a dual‐mode process: adsorption followed by permeation. A model is proposed for this process based on the interactions of condensible gas molecules with themselves and with the polymer surface. This model appears to have general applicability.