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

In Yup Jeon; Seo Yoon Bae; Jong Beom Baek

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

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 123-125Exfoliation of Graphite via Edge-Functionalization...

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

Abstract:

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.

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Periodical:

Advanced Materials Research (Volumes 123-125)

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671-674

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.123-125.671

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Online since:

August 2010

Authors:

In Yup Jeon, Seo Yoon Bae, Jong Beom Baek

Keywords:

Graphen, Hyperbranched Polymer, Poly(ether-keonte)s, Polyphosphoric Acid (PPA)

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