Exfoliation of Graphite via Edge-Functionalization with Carboxylic Acid-Terminated Hyperbranched Poly(ether-ketone)s

Abstract:

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Because the complete restoration of graphene oxide into graphene is unsuccessful, the “direct” exfoliation of graphite into graphene is still remaining challenge. Here, we report in-situ grafting of carboxylic acid-terminated hyperbranched poly(ether-ketone) (HPEK) onto the edge of graphite to afford “edge-functionalized” HPEK grafted graphite (HPEK-g-graphite). The HPEK plays as a macromolecular wedge to exfoliate graphite. The degree of exfoliation of the resultant HPEK-g-graphite was estimated by wide-angle x-ray diffraction (WAXD), transmission electron microscopy (TEM). Due to the macromolecular wedge effect, the resultant HPEK-g-graphite was dispersible well in common organic solvents. Hence, HPEK-g-graphite could be potentially useful for graphene-based materials.

Info:

Periodical:

Advanced Materials Research (Volumes 123-125)

Edited by:

Joong Hee Lee

Pages:

671-674

DOI:

10.4028/www.scientific.net/AMR.123-125.671

Citation:

I. Y. Jeon et al., "Exfoliation of Graphite via Edge-Functionalization with Carboxylic Acid-Terminated Hyperbranched Poly(ether-ketone)s", Advanced Materials Research, Vols. 123-125, pp. 671-674, 2010

Online since:

August 2010

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Price:

$35.00

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