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Interaction of water soluble chitosan with multiwalled carbon nanotubes

Authors

  • Wei Feng,

    1. Dept. of Biochemical Engineering and Dept. of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
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  • Ying Li,

    1. Dept. of Biochemical Engineering and Dept. of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
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  • Peijun Ji

    Corresponding author
    1. Dept. of Biochemical Engineering and Dept. of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
    • Dept. of Biochemical Engineering and Dept. of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
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Abstract

A water soluble chitosan derivative (p-chitosan) was synthesized and used to functionalize multiwalled carbon nanotubes (MWCNTs) through the noncovalent interaction. The interaction of p-chitosan with MWCNTs was investigated by analyzing the spectra of ultraviolet-visible, Fourier transform infrared, Raman, and X-ray photoelectron. Circular dichroism spectroscopy was used to study the interaction as well. The results of the circular dichroism spectra indicate that, the interaction of p-chitosan with MWCNT makes p-chitosan less regularly structured. It was found that the interaction of p-chitosan with MWCNTs at a lower temperature is stronger than that at a higher temperature; pH conditions affect the interaction between p-chitosan and MWCNTs. © 2011 American Institute of Chemical Engineers AIChE J, 2012

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