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Issue 21, 2011
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Wedging graphite into graphene and graphene-like platelets by dendritic macromolecules

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Abstract

We report in situ ‘direct’ grafting of dendritic macromolecular wedges to the edges of ‘pristine’ graphite. Because of the three-dimensional molecular architectures, the solubility of dendritic macromolecules is profoundly improved compared with that of their linear analogues. As a result, the resultant macromolecular wedge grafted graphite disperses well in common solvents. On the basis of results from wide-angle X-ray diffraction (WAXD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and atomic force microscopy (AFM), HPEK is selectively grafted at the edges of graphite. For the efficient delamination of graphite into graphene and graphene-like platelets, the dendritic macromolecules with numerous polar periphery groups not only acts as macromolecular wedges but provides chemical affinity to solvents.

Graphical abstract: Wedging graphite into graphene and graphene-like platelets by dendritic macromolecules

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Publication details

The article was received on 08 Feb 2011, accepted on 18 Mar 2011 and first published on 26 Apr 2011


Article type: Paper
DOI: 10.1039/C1JM10583C
Citation: J. Mater. Chem., 2011,21, 7820-7826
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    Wedging graphite into graphene and graphene-like platelets by dendritic macromolecules

    I. Jeon, H. Choi, S. Bae, D. W. Chang and J. Baek, J. Mater. Chem., 2011, 21, 7820
    DOI: 10.1039/C1JM10583C

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