Edge-functionalized graphene-like platelets as a co-curing agent and a nanoscale additive to epoxy resin

被引：78
作者：
Kim, Kyung-Su [1 ]
Jeon, In-Yup [1 ]
Ahn, Soo-Na [1 ]
Kwon, Young-Do [1 ]
Baek, Jong-Beom [1 ]
机构：
[1] Ulsan Natl Inst Sci & Technol UNIST, Interdisciplinary Sch Green Energy, Inst Adv Mat & Devices, Ulsan 689798, South Korea
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 20期
基金：
新加坡国家研究基金会;
关键词：
GROWN CARBON NANOFIBERS; MECHANICAL-PROPERTIES; POLY(VINYL ALCOHOL); GRAPHITE OXIDE; COMPOSITES; NANOTUBES; NANOCOMPOSITES; DISPERSION; FILMS; MOBILITY;
D O I：
10.1039/c0jm03504a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A newly developed method for the edge-selective functionalization of "pristine" graphite with 4-aminobenzoic acid was applied for the synthesis of 4-aminobenzoyl-functionalized graphite (AB-graphite) through a "direct" Friedel-Crafts acylation in a polyphosphoric acid (PPA)/phosphorus pentoxide medium (P(2)O(5)). The AB moiety at the edge of the AB-graphite played the role of a molecular wedge to exfoliate the AB-graphite into individual graphene and graphene-like platelets upon dispersion in polar solvents. These were used as a co-curing agent and a nanoscale additive to epoxy resin. The physical properties of the resulting epoxy/AB-graphite composites were improved because of the efficient load transfer between the additive and epoxy matrix through covalent links.
引用
收藏
页码：7337 / 7342
页数：6
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