Functionalized carbon nanotubes containing isocyanate groups |
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Authors: | Chungui Zhao Zhenzhong Yang |
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Institution: | Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Number 2, Zhongguancun North 1 St., Beijing 100080, China |
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Abstract: | Functionalized carbon nanotubes containing isocyanate groups can extend the nanotube chemistry, and may promote their many potential applications such as in polymer composites and coatings. This paper describes a facile method to prepare functionalized carbon nanotubes containing highly reactive isocyanate groups on its surface via the reaction between toluene 2,4-diisocyanate and carboxylated carbon nanotubes. Fourier-transformed infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) confirmed that reactive isocyanate groups were covalently attached to carbon nanotubes. The content of isocyanate groups were determined by chemical titration and thermogravimetric analysis (TGA). |
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Keywords: | Carbon nanotubes Functionalization Isocyanate group Reactivity |
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