Impregnation of an Acidic Extractant Cyanex 272 to the Alkylamino Group and Alkylthiol Group Introduced into the Polymer Chain Grafted onto a Porous Membrane

• Sawaki Kenta

  Department of Applied Chemistry and Biotechnology, Chiba University

• Domon Sayaka

  Department of Applied Chemistry and Biotechnology, Chiba University

• Asai Shiho

  Department of Applied Chemistry and Biotechnology, Chiba University Nuclear Energy Basic Engineering Research Sector, Japan Atomic Energy Agency

• Watanabe Kazuo

  Nuclear Energy Basic Engineering Research Sector, Japan Atomic Energy Agency

• Sugo Takanobu

  Environment Purification Research Institute Co.

• Saito Kyoichi

  Department of Applied Chemistry and Biotechnology, Chiba University

Bibliographic Information

Other Title

• アルキルアミノ基およびアルカンチオール基を導入したグラフト鎖 搭載多孔性膜への酸性抽出試薬Cyanex 272 の担持
• アルキルアミノキ オヨビ アルカンチオールキ オ ドウニュウシタ グラフトサ トウサイ タコウセイ マク エノ サンセイ チュウシュツ シヤク Cyanex 272 ノ タンジ

Abstract

An acid extractant, di (2, 4, 4-trimethylpentyl) phosphinic acid (Cyanex 272), was impregnated to the hydrophobic　ligand of a polymer chain grafted onto the pore surface of a porous membrane of a hollow-fiber form. The hydrophobic　ligand was introduced by a reaction of an epoxy group of the poly-glycidyl methacrylate, which was appended to　the porous membrane by radiation-induced graft polymerization, with n-alkylamine (CnH2n+1NH2) or n-octadecanethiol　(C18H37SH). The carbon number of the n-alkylamino group ranged from 0 to 18. The amount of Cyanex 272　impregnated onto the porous membrane increased with an increasing density of the n-octadecylamino group, whereas　the amount of impregnated Cyanex 272 was constant irrespective of the density of the n-octadecanethiol group.　No leakage of Cyanex 272 impregnated to the n-dodecylamino or n-octadecylamino group of the graft chain was　observed. The capturing of zinc ions by the Cyanex 272-impregnated porous hollow-fiber membrane was achieved　during the permeation of a zinc chloride solution through the pores of the porous membrane. The equilibrium binding　capacity of the Cyanex 272-impregnated porous hollow-fiber membrane for zinc ions was 0.37 mol/kg of the　GMA-grafted membrane.

Journal

• MEMBRANE

  MEMBRANE 32 (2), 109-115, 2007

  THE MEMBRANE SOCIETY OF JAPAN

Keywords

• Cyanex 272
• extractant impregnation
• hydrophobic interaction
• graft polymerization
• porous hollow-fiber membrane

Details

• CRID: 1390001206421673088
• NII Article ID: 10018865892
• NII Book ID: AN0023215X
• DOI: 10.5360/membrane.32.109
• ISSN: 18846440
• ISSN: 03851036
• ISSN: http://id.crossref.org/issn/03851036
• NDL BIB ID: 8767851
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8767851
• Web Site: https://www.jstage.jst.go.jp/article/membrane/32/2/32_109/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed