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 |
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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. |
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ISSN: | 1598-5032 2092-7673 |
DOI: | 10.1007/s13233-011-0101-z |