Permeation of CO 2  through polyurethane | Zendy

Xiao H. | Zendy; Ping Z. H. | Zendy; Xie J. W. | Zendy; Yu T. Y. | Zendy

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Permeation of CO 2 through polyurethane

Author(s) -

Xiao H.,

Ping Z. H.,

Xie J. W.,

Yu T. Y.

Publication year - 1990

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.1990.070400705

Subject(s) - activation energy , annealing (glass) , permeation , polyurethane , arrhenius equation , permeability (electromagnetism) , materials science , thermodynamics , atmospheric temperature range , chemistry , composite material , polymer chemistry , physics , membrane , biochemistry

The permeability of CO 2 through polyurethane was investigated. It is found that the permeability increases with the decrease of hard segment content and the increase of soft segment length; however, no change of activation energy is involved. The permeability increases with the elevation of annealing temperature. The temperature dependence of permeability observes the Arrhenius equation at temperatures below 60–80°C, but it deviates at temperatures above this range. This deviation would be attributed to the increase of mixing of hard and soft segments as a result of the dissociation of short‐range order in hard segment domains.

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