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    Influence of phenoxy-terminated short-chain pendant groups on gas transport properties of cross-linked poly(ethylene oxide) copolymers

    Access Status
    Fulltext not available
    Authors
    Kusuma, V.
    Matteucci, S.
    Freeman, B.
    Danquah, Michael
    Kalika, D.
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Kusuma, V. and Matteucci, S. and Freeman, B. and Danquah, M. and Kalika, D. 2009. Influence of phenoxy-terminated short-chain pendant groups on gas transport properties of cross-linked poly(ethylene oxide) copolymers. Journal of Membrane Science. 341 (1-2): pp. 84-95.
    Source Title
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2009.05.043
    ISSN
    0376-7388
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/13443
    Collection
    • Curtin Research Publications
    Abstract

    Gas transport properties of rubbery cross-linked poly(ethylene oxide) films containing short phenoxy-terminated pendant chains are reported. Poly(ethylene glycol) diacrylate (PEGDA) was UV-polymerized with poly(ethylene glycol) phenyl ether acrylate co-monomers of two different ethylene oxide repeat unit lengths: n = 2 (DEGPEA) and n = 4 (PEGPEA). Although fractional free volume increased with increasing co-monomer concentration, gas permeability did not rise accordingly. For instance, while FFV increased from 0.120 to 0.135 in both series of copolymers, CO2 permeability went from 110 to 35 barrer (DEGPEA) or to 100 barrer (PEGPEA). At the same time, glass transition temperature increased from -37 to -12 °C (DEGPEA) or to -28 °C (PEGPEA). The observed decrease in chain mobility with phenoxy-terminated co-monomer content indicated by increasing glass-rubber transition temperature apparently had a stronger influence on gas transport properties than the increase in fractional free volume. © 2009 Elsevier B.V. All rights reserved.

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