Electrical properties of multi-walled carbon nanotube/poly(methyl methacrylate) nanocomposite

S. J. Park, S. T. Lim, M. S. Cho, H. M. Kim, J. Joo, H. J. Choi

Research output: Contribution to journalArticlepeer-review

73 Citations (Scopus)

Abstract

Multi-walled carbon nanotube (MWNT) nanocomposites with poly(methyl methacrylate) were prepared via both an in situ bulk polymerization and a suspension polymerization using a radical initiator of 2,2-azobisisobutyronitrile (AIBN). Prior to the synthesis, the MWNT was purified in an acidic solution to remove impurities such as metallic catalysts and amorphous carbons. The AIBN induced PMMA was grafted on the MWNT, which was confirmed by a Fourier transform infrared spectrometer (FT-IR). The composite morphology of the MWNT was observed by scanning electron microscopy (SEM). Electrical characteristics were further examined via both a four-probe method and a rotational rheometer equipped with a high voltage generator.

Original languageEnglish
Pages (from-to)302-304
Number of pages3
JournalCurrent Applied Physics
Volume5
Issue number4
DOIs
Publication statusPublished - 2005 May

Keywords

  • Electrorheology
  • In situ bulk polymerization
  • Multi-walled carbon nanotube
  • Suspension polymerization

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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