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

被引：2

作者：

Jeon, In-Yup ^{[1
]}

Bae, Seo-Yoon ^{[1
]}

Baek, Jong-Beom ^{[1
]}

机构：

[1] UNIST, Interdisciplinary Sch Green Engn, Ulsan 689798, South Korea

来源：

MULTI-FUNCTIONAL MATERIALS AND STRUCTURES III, PTS 1 AND 2 | 2010年 / 123-125卷

关键词：

graphene; polyphosphoric acid; hyperbranched polymer; poly(ether-keonte)s; SUSPENDED GRAPHENE; ROUTE; GAS;

D O I：

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

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：671 / 674

页数：4

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