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Hyperbranched Aliphatic Polyester Modified Activated Carbon Particles With Homogenized Surface Groups

Author

Listed:
  • PENG LIU

    (Institute of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China)

  • LIUXUE ZHANG

    (College of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou, Henan 450007, China)

Abstract

The hyperbranched aliphatic polyester grafted activated carbon (HAPE-AC), was successfully prepared by the simple "one-pot" method. The surface functional groups of commercial activated carbon particles were homogenized to hydroxyl groups by being oxidized with nitric acid and then reduced with lithium tetrahydroaluminate(LiAlH4)at first. Secondly, the surface hydroxyl groups were used as the active sites for the solution polycondensation of the AB2monomer, 2, 2-bis(hydroxymethyl)propionic acid (bis-MPA), with the catalysis ofp-toluenesulfonic acid (p-TSA). The homogenization of the surface groups of the activated carbon particles and the graft polymerization of the hyperbranched aliphatic polyester were investigated by X-ray photoelectron spectroscopy (XPS) technique. The products were also characterized with Fourier transform infrared (FT-IR) and scanning electron microscope (SEM). The competitive adsorption properties of the products toward the heavy metal ions (Cu(II),Hg(II),Zn(II), andCd(II)) also proved the translations of the surface groups.

Suggested Citation

  • Peng Liu & Liuxue Zhang, 2007. "Hyperbranched Aliphatic Polyester Modified Activated Carbon Particles With Homogenized Surface Groups," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(06), pages 1025-1032.
    • Handle: RePEc:wsi:srlxxx:v:14:y:2007:i:06:n:s0218625x07010585
    DOI: 10.1142/S0218625X07010585
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