Edge-Selectively Functionalized Graphene-Like Platelets as a Co-curing Agent and a Nanoscale Additive to Epoxy Resin

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)/phosphorous pentoxide medium (P2O5). 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.

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Document Details

Document Type
Technical Report
Publication Date
Aug 12, 2012
Accession Number
ADA568410

Entities

People

  • Jong-Beom Baek

Organizations

  • Ulsan National Institute of Science and Technology

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Carbon Nanotubes
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Curing Agents
  • Electron Microscopy
  • Epoxy Resins
  • Graphene
  • Graphitic Materials
  • Materials
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Physical Properties
  • Polymer Chemistry
  • Polymers
  • Resins

Readers

  • Polymer Science and Technology
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Reinforced Composite Materials

Technology Areas

  • Microelectronics