Preparation and characterization of amphiphilic multi-walled carbon nanotubes |
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| Authors: | Jun Qiu Guojian Wang Caixia Zhao |
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| Affiliation: | (1) Institute of Polymer Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 200092, P.R. China |
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| Abstract: | Multiwalled carbon nanotubes (MWCNTs, average diameter 8 nm) functionalized by N-vinyl pyrrolidone (NVP) were synthesized by radical polymerization and characterized by Fourier transform infrared and Raman spectroscopies, thermogravimetric analysis and transmission electron microscopy. These NVP–MWCNTs exhibit remarkable solubility in water, ethanol and dimethyl formamide. The polyvinyl pyrrolidone can be attached onto the surface of the MWCNTs and the degree of functionalization is affected by NVP content. The functionalization causes possible grafting reaction and solid physical coating between MWCNTs and PVP. |
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| Keywords: | Carbon nanotubes Chemical treatment Raman spectroscopy Thermogravimetric analysis Functionalization Synthesis Solubility |
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