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Author

Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
Research Interests
  • Covalent Organic Frameworks (COFs), Carbon Nanotubes(CNTs), graphene, Energy Conversion and Storage

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

Cited 19 times inthomson ciCited 16 times inthomson ci
Title
Edge-functionalized graphene-like platelets as a co-curing agent and a nanoscale additive to epoxy resin
Author
Kim, Kyung-SuJeon, In-YupAhn, Soo-NaKwon, Young-DoBaek, Jong-Beom
Keywords
4-aminobenzoic acid; Co-curing; Covalent link; Epoxy matrices; Friedel-crafts acylation; Functionalized; Graphite composites; Load transfer; Nano scale; Phosphorus pentoxide; Polar solvents; Polyphosphoric acids; Selective functionalization
Issue Date
201105
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY, v.21, no.20, pp.7337 - 7342
Abstract
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.
URI
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DOI
http://dx.doi.org/10.1039/c0jm03504a
ISSN
0959-9428
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