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Mechanism of gas transport of NH 3 ‐plasma‐treated poly(phenylene oxide) membrane
Author(s) -
Kumazawa H.,
Yoshida M.
Publication year - 2000
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 - 10.1002/1097-4628(20001205)78:10<1845::aid-app170>3.0.co;2-o
Subject(s) - membrane , sorption , permeation , langmuir , phenylene , oxide , diffusion , chemical engineering , polymer chemistry , permeability (electromagnetism) , gaseous diffusion , oxygen , fick's laws of diffusion , nitrogen , chemistry , facilitated diffusion , materials science , polymer , adsorption , organic chemistry , thermodynamics , biochemistry , physics , electrode , engineering
The effect of NH 3 ‐plasma treatment on glassy poly(phenylene oxide) (PPO) membranes on the diffusion process for carbon dioxide (CO 2 ), oxygen (O 2 ), and nitrogen (N 2 ) was investigated from the permeability measurements. The sorption equilibria and permeation behavior for O 2 and CO 2 in untreated PPO membranes were simulated well in terms of the dual‐mode sorption and mobility model. For O 2 transport, NH 3 ‐plasma treatment on PPO membrane had an influence on the diffusion process of Henry's law species, whereas for CO 2 transport, it promoted the transport of Langmuir mode, presumably through an increased Langmuir capacity constant for CO 2 . © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1845–1852, 2000