放射線グラフト重合法による膜の改質が可能にする抽出試薬担持材料の作製 Impregnation of Extractants to Porous Membrane by Radiation-induced Graft Polymerization

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著者

    • 浅井 志保 ASAI Shiho
    • 日本原子力研究開発機構 環境・原子力微量分析研究グループ Division of Environment and Radiation Sciences, Japan Atomic Energy Agency

抄録

A novel method for impregnating extractants to a polymeric porous membrane of hollow-fiber form was suggested to collect metal ions at high rate by permeating a metal-ion-containing solution through the pores of the extractantimpregnated porous membrane. The extractants, such as HDEHP, Cyanex 272, TOPO, and Aliquat 336, were impregnated to the polymer chain grafted onto the pore surface of the porous membrane via a hydrophobic interaction between the hydrophobic moiety contained in the extractant and the long alkyl chain introduced into the graft chain. The amounts of extractants impregnated ranged from 1.2 to 2.1 mole per kg of the GMA-grafted porous membrane, which was comparable to and higher than those of conventional extractant-impregnated beadous resins. For the impregnation of the neutral and basic extractants, the diol and carboxypentylamino groups, respectively, coexisting with hydrophobic groups of the graft chain worked well to retain the permeability after impregnation and to increase the amount of the extractant impregnated. The extractants impregnated to the graft chain were found to bind the metal ions efficiently, i.e., at a molar binding efficiency of 100%. In addition, no deterioration of the amount of metal ions adsorbed after the repeated uses of adsorption and elution procedures revealed that the leakage of the extractants from the graft chain was negligible.

収録刊行物

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    膜 33(2), 70-77, 2008-03-01 

    THE MEMBRANE SOCIETY OF JAPAN

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各種コード

  • NII論文ID(NAID)
    10021167324
  • NII書誌ID(NCID)
    AN0023215X
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03851036
  • NDL 記事登録ID
    9437560
  • NDL 雑誌分類
    ZR2(科学技術--生物学--生化学)
  • NDL 請求記号
    Z18-1127
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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