Polymer Brushes via Controlled, Surface-Initiated Atom Transfer Radical Polymerization (ATRP) from Graphene Oxide

Authors

  • Sun Hwa Lee,

    1. Department of Materials Science and Engineering KAIST, Daejeon 305-701, Republic of Korea
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  • Daniel R. Dreyer,

    1. Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712-0165, USA
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  • Jinho An,

    1. Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton St., Austin, Texas 78712-0292, USA
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  • Aruna Velamakanni,

    1. Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton St., Austin, Texas 78712-0292, USA
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  • Richard D. Piner,

    1. Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton St., Austin, Texas 78712-0292, USA
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  • Sungjin Park,

    1. Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton St., Austin, Texas 78712-0292, USA
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  • Yanwu Zhu,

    1. Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton St., Austin, Texas 78712-0292, USA
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  • Sang Ouk Kim,

    1. Department of Materials Science and Engineering KAIST, Daejeon 305-701, Republic of Korea
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  • Christopher W. Bielawski,

    Corresponding author
    1. Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712-0165, USA
    • Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712-0165, USA.
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  • Rodney S. Ruoff

    Corresponding author
    1. Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton St., Austin, Texas 78712-0292, USA
    • Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton St., Austin, Texas 78712-0292, USA.
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Abstract

A method for growing polymers directly from the surface of graphene oxide is demonstrated. The technique involves the covalent attachment of an initiator followed by the polymerization of styrene, methyl methacrylate, or butyl acrylate using atom transfer radical polymerization (ATRP). The resulting materials were characterized using a range of techniques and were found to significantly improve the solubility properties of graphene oxide. The surface-grown polymers were saponified from the surface and also characterized. Based on these results, the ATRP reactions were determined to proceed in a controlled manner and were found to leave the structure of the graphene oxide largely intact.

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