Bulletin of the Korean Chemical Society

  • 제32권1호
  • /
  • Pages.196-200
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  • 2011
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Influence of Aminized Graphite Nanosheets on the Physical Properties of PMMA-based Nanocomposites

  • 투고 : 2010.06.12
  • 심사 : 2010.11.12
  • 발행 : 2011.01.20
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초록

In this work, poly(methyl methacrylate) (PMMA) was grafted onto amine treated graphite nanosheets ($NH_2$-GNs) and the surface characteristics and physical properties of the $NH_2$-GNs-g-PMMA films were investigated. The graft reaction of $NH_2$-GNs and PMMA was confirmed from the shift of the $N_{1S}$ peak, including amine oxygen and amide oxygen, by X-ray photoelectron spectroscopy (XPS). The surface characteristics of the $NH_2$-GNs-g-PMMA films were measured as a function of the $NH_2$-GN content using the contact angle method. It was revealed that the specific component of the surface free energy (${\gamma}s$) of the films was slightly increased as the $NH_2$-GN content increased. Also, the thermal and mechanical properties of the $NH_2$-GNs-g-PMMA films were enhanced with the addition of $NH_2$-GNs. This can be attributed to the chemical bonding caused by the graft reaction between the $NH_2$-GNs and the PMMA matrix.

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