Equilibrium of benzidine inclusion adsorption on cyclodextrin copolymer

Authors

  • Zhao-Yang Sun,

    1. UNILAB, State Laboratory of Chemical Engineering, Ecust China University of Science and Technology, Shanghai 200237, China
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  • Gui-Ping Cao,

    Corresponding author
    1. UNILAB, State Laboratory of Chemical Engineering, Ecust China University of Science and Technology, Shanghai 200237, China
    • UNILAB, State Laboratory of Chemical Engineering, Ecust China University of Science and Technology, Shanghai 200237, China
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  • Hui Lv,

    1. UNILAB, State Laboratory of Chemical Engineering, Ecust China University of Science and Technology, Shanghai 200237, China
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  • Ling Zhao,

    1. UNILAB, State Laboratory of Chemical Engineering, Ecust China University of Science and Technology, Shanghai 200237, China
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  • Tao Liu,

    1. UNILAB, State Laboratory of Chemical Engineering, Ecust China University of Science and Technology, Shanghai 200237, China
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  • Ludovic Montastruc,

    1. Laboratoire ProBioGEM EA 1026, Ecole Polytechnique Universitaire de Lille, Université des Sciences and Technologies de Lille, France
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  • Nikov Iordan

    1. Laboratoire ProBioGEM EA 1026, Ecole Polytechnique Universitaire de Lille, Université des Sciences and Technologies de Lille, France
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Abstract

Insoluble β-cyclodextrin (β-CD) copolymer was prepared by reacting β-CD with hexamethylene diisocyanate, and its inclusion adsorption behavior was investigated. The physical and chemical properties of CD copolymer were characterized by SEM, FTIR, DSC, TGA, XRD, and BET N2 adsorption. The effects that shaking time and temperature exerted on the inclusion adsorption of benzidine on CD copolymer have been studied at relative low initial benzidine concentration. The procedure of the inclusion adsorption could be described by the Freundlich equation, and the thermodynamic constants ΔHθ, ΔSθ and ΔGθ were obtained simultaneously. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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