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    An Electrochemical Impedance Spectroscopy/Neutron Reflectometry Study of Water Uptake in the Poly(3,4-Ethylenedioxythiophene):Poly(Styrene Sulfonate)/Polymethyl Methacrylate-Polydecyl Methacrylate Copolymer Solid-Contact Ion-Selective Electrode

    Access Status
    Fulltext not available
    Authors
    Veder, Jean-Pierre
    Patel, Kunal
    Sohail, M.
    Jiang, San Ping
    James, M.
    De Marco, Roland
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Veder, J. and Patel, K. and Sohail, M. and Jiang, S.P. and James, M. and De Marco, R. 2012. An Electrochemical Impedance Spectroscopy/Neutron Reflectometry Study of Water Uptake in the Poly(3,4-Ethylenedioxythiophene):Poly(Styrene Sulfonate)/Polymethyl Methacrylate-Polydecyl Methacrylate Copolymer Solid-Contact Ion-Selective Electrode. Electroanalysis. 24 (1): pp. 140-145.
    Source Title
    Electroanalysis
    DOI
    10.1002/elan.201100524
    ISSN
    1040-0397
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/36726
    Collection
    • Curtin Research Publications
    Abstract

    Further to previous work on the ion-selective electrode (ISE) comprising a poly(3,4-ethylenedioxythiophene:poly(styrene sulfonate) [PEDOT : PSS] solid-contact (SC) and a plasticised polyvinyl chloride (PVC) membrane that led to blurring of interference fringes in neutron reflectometry (NR) data, the lipophilic polymethyl methacrylate/polydecyl methacrylate (PMMA-PDMA) copolymer ISE membrane was used to provide high quality NR data that is relatively free of interfacial roughening and unequivocal information on the uptake of water in this important SC ISE. The outcomes revealed that the hydrophobic PMMA-PDMA membrane remains free of absorbed water, while the underlying the PEDOT : PSS SC absorbs water, swelling and changing its neutron scattering properties.

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