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Jin-Young Kim, Wi Hyoung Lee, Ji Won Suk, Jeffrey R. Potts, Harry Chou, Iskandar N. Kholmanov, Richard D. Piner, Jongho Lee, Deji Akinwande and Rodney S. Ruoff Chlorination of Reduced Graphene Oxide Enhances the Dielectric Constant of Reduced Graphene Oxide/Polymer Composites Advanced Materials 25

Article first published online: 28 FEB 2013 | DOI: 10.1002/adma.201300385

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Phenyl isocyanate-functionalized and hydrazine-reduced reduced graphene oxide (rG-O) is treated to produce chlorinated rG-O (Cl-rG-O) platelets. The dielectric constant of the composite film containing Cl-rG-O shows a 5.5-fold increase over that of composites of untreated rG-O and this cyanoethyl-based polymer, a consequence of the combination of polar and polarizable C–Cl bonds and the increased interfacial polarization.

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