Influence of GMA grafted MWNTs on physical and rheological properties of PMMA-based nanocomposites by in situ polymerization

In this study, multi-walled carbon nanotubes (MWNTs) reinforced poly (methyl methacrylate) (PMMA) nanocomposites were prepared by in situ polymerization. Glycidyl methacrylate (GMA) grafted MWNTs (GMA-MWNTs) were used to improve the compatibility between the MWNTs and the PMMA matrix. The physical a...

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Veröffentlicht in:Macromolecular research 2011, 19(1), , pp.14-20
Hauptverfasser: Kim, Ki-Seok, Byun, Joon-Hyung, Lee, Gyu-Hwan, Park, Soo-Jin
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Sprache:eng
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Zusammenfassung:In this study, multi-walled carbon nanotubes (MWNTs) reinforced poly (methyl methacrylate) (PMMA) nanocomposites were prepared by in situ polymerization. Glycidyl methacrylate (GMA) grafted MWNTs (GMA-MWNTs) were used to improve the compatibility between the MWNTs and the PMMA matrix. The physical and rheological properties of the PMMA nanocomposites with different GMA-MWNT contents were examined. The GMA-MWNTs were embedded homogeneously into the PMMA matrix by in situ polymerization. A uniform dispersion of GMA-MWNTs produced nanocomposites with enhanced physical properties. The maximum tensile strength was observed with the 2.0 wt% GMA-MWNT loading, and was 41% higher than that of pure PMMA. In addition, the viscosity of the nanocomposites was increased gradually by the addition of GMA-MWNTs. The storage ( G′ ) and loss modulus ( G″ ) were increased significantly by increasing the GMA-MWNT content, which was attributed to the strong interaction between highly dispersed GMA-MWNTs and PMMA matrix.
ISSN:1598-5032
2092-7673
DOI:10.1007/s13233-011-0101-z