Synthesis and Adsorption Studies on Magnetic Microbeads of Polythioether-arylamine Resins
来源期刊:Journal Of Wuhan University Of Technology Materials Science Edition2001年第3期
论文作者:张超灿
文章页码:56 - 59
摘 要:By the suspended condensation reaction of poly(choloromethyl thiirane) with o-tolidine and o-dianisidine respectively, two new microbeads of magnetic chelating resins were synthesized by usingγ-Fe2O3 as magnetic core. Their adsorption properties for Hg(Ⅱ), Cu( Ⅱ ) , Zn( Ⅱ ) , Pb( Ⅱ ) , Au( Ⅲ ) , Pd( Ⅱ ) , Pt (Ⅳ ) and Ag( Ⅰ ) were investigated. The microbeads possess excellent adsorbability for Hg( Ⅱ) and noble metal ions, and predominantly adsorbed Pd( Ⅱ) or Hg(Ⅱ) in the coexistence of Cu ( Ⅱ ), Zn( Ⅱ ) andMg(Ⅱ). The experimental results demonstrate that resin Ⅱ with lower N and S contents has higher adsorption capacities for noble metal ions than resin Ⅰ, which shows the dianisidine group in resin Ⅱ plays an important role in the adsorption , due to the synergistic effects of methoxyl and amino group in adjacent position.
张超灿
摘 要:By the suspended condensation reaction of poly(choloromethyl thiirane) with o-tolidine and o-dianisidine respectively, two new microbeads of magnetic chelating resins were synthesized by usingγ-Fe2O3 as magnetic core. Their adsorption properties for Hg(Ⅱ), Cu( Ⅱ ) , Zn( Ⅱ ) , Pb( Ⅱ ) , Au( Ⅲ ) , Pd( Ⅱ ) , Pt (Ⅳ ) and Ag( Ⅰ ) were investigated. The microbeads possess excellent adsorbability for Hg( Ⅱ) and noble metal ions, and predominantly adsorbed Pd( Ⅱ) or Hg(Ⅱ) in the coexistence of Cu ( Ⅱ ), Zn( Ⅱ ) andMg(Ⅱ). The experimental results demonstrate that resin Ⅱ with lower N and S contents has higher adsorption capacities for noble metal ions than resin Ⅰ, which shows the dianisidine group in resin Ⅱ plays an important role in the adsorption , due to the synergistic effects of methoxyl and amino group in adjacent position.
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