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Measurement of oxygen transport parameters in polymer films initially saturated with air
Author(s) -
Alger M. M.,
Stanley T. J.
Publication year - 1988
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.1988.070360620
Subject(s) - oxygen , polymer , saturation (graph theory) , diffusion , oxygen transport , materials science , limiting oxygen concentration , analytical chemistry (journal) , transient (computer programming) , partial pressure , chemistry , thermodynamics , chromatography , composite material , organic chemistry , physics , computer science , operating system , mathematics , combinatorics
The solubilities and diffusion cofficients of gases in polymer films can be determined from dynamic transport experiments. In the standard approach, a film initially free of the permeant of interest must be used. A new variation on the standard approach is presented for determining the transport parameters of oxygen from a transient experiment. The initial condition in the film is the normal oxygen saturation pressure (0.21 atm) and the applied oxygen pressure on the high side is 1 atm. Whereas this technique is generally applicable, it is particularly convenient for oxygen transport experiments because films stored in air do not have to be degassed before starting the experiment.