Complexation of Terbium Ion with the Copolymer of Acrylic Acid and Acrylamide Grafted onto Polyethylene |
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| Authors: | Hideto Akiba Hiroyuki Nishide Eishun Tsuchida Hideki Omichi Jiro Okamoto |
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| Institution: | 1. Department of Polymer Chemistry , Waseda University , Tokyo, 160, Japan;2. Takasaki Radiation Chemistry Research Establishment Japan Atomic Energy Research Institute , Takasaki, 370-12, Japan |
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| Abstract: | Acrylic acid (AA) and acrylamide (AAm) were graft copolymerized onto polyethylene powder by the preirradiation method. The PE powder grafted with both AA and AAm (PE-g-(AA-co-AAm)) rapidly adsorbed Tb ion with an efficiency higher than did PE powder grafted with AA (PE-g-AA). The complex formation constant of Tb ion with PE-g-(AA-co-AAm) was larger than that with PE-g-AA because the introduction of the acrylamide part decreased the steric hindrance for complexation between Tb and the carboxyl group of the graft chains. Tb ion was efficiently separated from transition metal ions, such as Co, upon passage of a solution through a column packed with PE-g-(AA-co-AAm). |
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