Behavior of multiwalled carbon nanotubes functionalized with sulfo groups in aqueous salt solutions
- 136 Downloads
The functionalization of multiwalled carbon nanotubes (MWCNTs) with sulfanilic acid through the diazotization reaction, which yielded the covalent bonding of sulfo groups to the nanotube surfaces, was performed. Stable aqueous nanotube dispersions were obtained. The sizes of functionalized nanotubes in aqueous salt and salt-free solutions and their hydrodynamic characteristics were measured by dynamic light scattering. The data were compared with the data of scanning electron microscopy.
KeywordsDynamic Light Scattering Multi Wall Carbon Scanning Electron Micro DMFA Scattered Light Intensity
Unable to display preview. Download preview PDF.
- 11.Photon Correlation and Light Beating Spectroscopy, Ed. by H. Z. Cummins and E. R. Pike (Plenum Press, New York, 1974; Mir, Moscow, 1978).Google Scholar
- 16.A. Smith, Applied Infrared Spectroscopy (Wiley, New York, 1979; Mir, Moscow, 1982).Google Scholar
- 17.V. N. Tsvetkov, Rigid-Chain Polymers (Nauka, Leningrad, 1986; Plenum, New York, 1989).Google Scholar
- 18.H. S. Lee, C. H. Yun, H. M. Kim, and C. Lee, “Persistence Length of Multiwalled Carbon Nanotubes with Static Bending,” J. Phys. Chem. 111, 18882–18887.Google Scholar