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|Title:||Synthesis and characterization of surface-functionalized conducting polyaniline-chitosan nanocomposite|
|Citation:||Darning, C., Haibing, X., Chan, H.S.O. (2005). Synthesis and characterization of surface-functionalized conducting polyaniline-chitosan nanocomposite. Journal of Nanoscience and Nanotechnology 5 (3) : 466-473. ScholarBank@NUS Repository. https://doi.org/10.1166/jnn.2005.058|
|Abstract:||We describe in this paper an easy route to the synthesis of a novel surface-functionalized conducting polyaniline-chitosan nanocomposite. A stable colloidal dispersion was prepared when aniline was polymerized in the presence of chitosan as the steric stabilizer. TEM study shows that these surface-functionalized polyaniline-chitosan nanoparticles have rice-grain morphologies. The effect of reaction parameters on the mean size of the polyaniline-chitosan nanoparticles was studied. The steric electrostatic interaction between segments of these two polymers explains the excellent storage stability of the polyaniline-chitosan dispersion. Reaction parameters were optimized in order to get stable polyaniline-chitosan dispersion. The chemical structures of polyaniline-chitosan nanocomposite were characterized. FT-IR spectra of the polyaniline-chitosan nanocomposite show that there exist a certain interaction between polyaniline and chitosan. X-ray photoelectron spectroscopy spectra show that chitosan is largely present at the surface of polyaniline-chitosan nanoparticles. The electrical conductivity of the polyaniline-chitosan nanocomposite increases with increasing the amount of polyaniline to a high value of 0.25 S/cm. Copyright © 2005 American Scientific Publishers All rights reserved.|
|Source Title:||Journal of Nanoscience and Nanotechnology|
|Appears in Collections:||Staff Publications|
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