Nitroxide-mediated stabilizer-free inverse suspension polymerization of N-isopropylacrylamide in supercritical carbon dioxide

Authors

  • Padraig O'connor,

    1. School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
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  • Per B. Zetterlund,

    Corresponding author
    1. Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
    • Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
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  • Fawaz Aldabbagh

    Corresponding author
    1. School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
    • School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
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Abstract

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The first inverse dispersed phase controlled/living polymerization in supercritical carbon dioxide (scCO2) is described. The nitroxide-mediated radical polymerization of N-isopropylacrylamide proceeded in the absence of stabilizer to high conversion giving a dry powder. The polymerization and purification does not require the use of environmentally damaging volatile organic compound.

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