Structure of polyol-ligand-containing polymer brush on the porous membrane for antimony(III) binding

Tomonori Saito, Hidetaka Kawakita, Kazuya Uezu, Satoshi Tsuneda, Akira Hirata, Kyoichi Saito, Masao Tamada, Takanobu Sugo

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    A polyol-ligand-containing porous hollow-fiber membrane for the recovery of antimony(III) was prepared by radiation-induced graft polymerization of an epoxy-group-containing vinyl monomer, glycidyl methacrylate (GMA), and by subsequent functionalization with N-methylglucamine (NMG) and 3-amino-1,2-propanediol (APD), that form a coordination complex with Sb(III). The structure of NMG-Sb(III) and APD-Sb(III) complexes in aqueous solution were determined by electron ionization-time-of-flight mass spectrometer (ESI-TOF-MS), and the binding ratio of NMG or APD to Sb(III) is 2:1. An antimony(III) oxide solution (10 mg Sb/l, pH 11.4) was forced to permeate through the submicron-diameter pores of the polyol-ligand-containing porous hollow-fiber membranes. The equilibrium binding capacity for antimony(III) to the NMG-ligand-containing porous hollow-fiber membrane, 96 g Sb/kg, was 10 times higher than that of the APD membrane. In a further study of the NMG membrane, the equilibrium binding ratios for antimony(III) to NMG groups were all approximately 0.5, illustrating that the NMG-Sb(III) complex on the fibers was in the ratio of 2:1. The results of computational structural analysis of the NMG-Sb(III) complex were in agreement with the experimental results of binding ratio. It was verified that an antimony(III) ion formed a coordination complex with two adjacent hydroxyl groups of two NMG moieties. The length of a functional group and the distance between functional groups on the polymer brush were significant factors to bind antimony(III) through the computational simulation.

    Original languageEnglish
    Pages (from-to)65-71
    Number of pages7
    JournalJournal of Membrane Science
    Volume236
    Issue number1-2
    DOIs
    Publication statusPublished - 2004 Jun 15

    Fingerprint

    Meglumine
    Antimony
    Polyols
    brushes
    Brushes
    antimony
    Polymers
    Ligands
    membranes
    Membranes
    ligands
    polymers
    hollow
    Propylene Glycol
    fibers
    Fibers
    Functional groups
    Coordination Complexes
    Mass spectrometers
    structural analysis

    Keywords

    • Antimony(III)
    • Polymer brush
    • Porous membrane

    ASJC Scopus subject areas

    • Filtration and Separation
    • Polymers and Plastics

    Cite this

    Structure of polyol-ligand-containing polymer brush on the porous membrane for antimony(III) binding. / Saito, Tomonori; Kawakita, Hidetaka; Uezu, Kazuya; Tsuneda, Satoshi; Hirata, Akira; Saito, Kyoichi; Tamada, Masao; Sugo, Takanobu.

    In: Journal of Membrane Science, Vol. 236, No. 1-2, 15.06.2004, p. 65-71.

    Research output: Contribution to journalArticle

    Saito, Tomonori ; Kawakita, Hidetaka ; Uezu, Kazuya ; Tsuneda, Satoshi ; Hirata, Akira ; Saito, Kyoichi ; Tamada, Masao ; Sugo, Takanobu. / Structure of polyol-ligand-containing polymer brush on the porous membrane for antimony(III) binding. In: Journal of Membrane Science. 2004 ; Vol. 236, No. 1-2. pp. 65-71.
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    abstract = "A polyol-ligand-containing porous hollow-fiber membrane for the recovery of antimony(III) was prepared by radiation-induced graft polymerization of an epoxy-group-containing vinyl monomer, glycidyl methacrylate (GMA), and by subsequent functionalization with N-methylglucamine (NMG) and 3-amino-1,2-propanediol (APD), that form a coordination complex with Sb(III). The structure of NMG-Sb(III) and APD-Sb(III) complexes in aqueous solution were determined by electron ionization-time-of-flight mass spectrometer (ESI-TOF-MS), and the binding ratio of NMG or APD to Sb(III) is 2:1. An antimony(III) oxide solution (10 mg Sb/l, pH 11.4) was forced to permeate through the submicron-diameter pores of the polyol-ligand-containing porous hollow-fiber membranes. The equilibrium binding capacity for antimony(III) to the NMG-ligand-containing porous hollow-fiber membrane, 96 g Sb/kg, was 10 times higher than that of the APD membrane. In a further study of the NMG membrane, the equilibrium binding ratios for antimony(III) to NMG groups were all approximately 0.5, illustrating that the NMG-Sb(III) complex on the fibers was in the ratio of 2:1. The results of computational structural analysis of the NMG-Sb(III) complex were in agreement with the experimental results of binding ratio. It was verified that an antimony(III) ion formed a coordination complex with two adjacent hydroxyl groups of two NMG moieties. The length of a functional group and the distance between functional groups on the polymer brush were significant factors to bind antimony(III) through the computational simulation.",
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    AU - Saito, Tomonori

    AU - Kawakita, Hidetaka

    AU - Uezu, Kazuya

    AU - Tsuneda, Satoshi

    AU - Hirata, Akira

    AU - Saito, Kyoichi

    AU - Tamada, Masao

    AU - Sugo, Takanobu

    PY - 2004/6/15

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    AB - A polyol-ligand-containing porous hollow-fiber membrane for the recovery of antimony(III) was prepared by radiation-induced graft polymerization of an epoxy-group-containing vinyl monomer, glycidyl methacrylate (GMA), and by subsequent functionalization with N-methylglucamine (NMG) and 3-amino-1,2-propanediol (APD), that form a coordination complex with Sb(III). The structure of NMG-Sb(III) and APD-Sb(III) complexes in aqueous solution were determined by electron ionization-time-of-flight mass spectrometer (ESI-TOF-MS), and the binding ratio of NMG or APD to Sb(III) is 2:1. An antimony(III) oxide solution (10 mg Sb/l, pH 11.4) was forced to permeate through the submicron-diameter pores of the polyol-ligand-containing porous hollow-fiber membranes. The equilibrium binding capacity for antimony(III) to the NMG-ligand-containing porous hollow-fiber membrane, 96 g Sb/kg, was 10 times higher than that of the APD membrane. In a further study of the NMG membrane, the equilibrium binding ratios for antimony(III) to NMG groups were all approximately 0.5, illustrating that the NMG-Sb(III) complex on the fibers was in the ratio of 2:1. The results of computational structural analysis of the NMG-Sb(III) complex were in agreement with the experimental results of binding ratio. It was verified that an antimony(III) ion formed a coordination complex with two adjacent hydroxyl groups of two NMG moieties. The length of a functional group and the distance between functional groups on the polymer brush were significant factors to bind antimony(III) through the computational simulation.

    KW - Antimony(III)

    KW - Polymer brush

    KW - Porous membrane

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