A Study on the Preparation of Metal-Ion Separation Membrane with Hydrophilic Polyphosphazenes

친수성 포스파젠 고분자를 이용한 금속 이온 분리막 제조에 관한 연구

  • Kwon, Suk-Ky (Department of Chemical System Engineering, Hongik University) ;
  • Lee, Byung-Chul (Department of Chemical System Engineering, Hongik University)
  • 권석기 (홍익대학교 과학기술대학 화학시스템공학과) ;
  • 이병철 (홍익대학교 과학기술대학 화학시스템공학과)
  • Received : 1999.01.06
  • Accepted : 1999.04.14
  • Published : 1999.05.10


Hydrophilic polyphosphazenes were synthesized from hydrophobic polyphosphazenes by adding methoxyethylenoxy side chains and cast by dip-coating method into membranes supported on porous polypropylene mesh filter sheet for metal separation testing. A solution of $Cr^{3+},\;Co^{2+},\;Mn^{2+}$ nitrates was used in diffusion experiments which were conducted from $25^{\circ}C$ to $60^{\circ}C$. lt was found that the ion transport properties were increased as the repeating number of ethylenoxy side chain increased. Membrane from trifluoroethoxy methoxyethoxyethoxyethoxy co-substituted polyphosphazenes was found to separate $Cr^{3+}$ ion from $Mn^{2-}$ and $Co^{2+}$ ions with separation factor of 4.5 at $60^{\circ}C$.




Supported by : 교육부


  1. U. S. Patent 4,880,622 H. R. Allcock;S. Kwon
  2. J. Membrane Sci. R. Wycisk;P. N. Pintauro
  3. J. of Korean Ind & Eng. Chem. v.9 S. Kwon;B. Lee
  4. J. Membrane Sci. v.28 R. R. McCaffery;R. E. McAttee;A. E. Grey;C. A. Allen;D. G. Cummings;A. D. Appelhans
  5. Macromolecules v.29 H. R. Allcock;S. Z. Kuharick;C. R. Reed
  6. Biomaterials v.19 no.6 H. R. Allcock;S. Kwon
  7. Chem. Rev. v.72 H. R. Allcock
  8. Macromolecueles v.21 H. R. Allcock;S. Kwon
  9. Macromolecueles v.22 H. R. Allcock;S. Kwon
  10. Macromolecules v.29 H. R. Allcock;G. K. Dudley
  11. Transition Met. Chem. Aqueous Chemistry of Chromium(Ⅲ) J. E. Early;R. D. Cannon
  12. Macromolecules v.29 H. R. Allcock;S. J. M. O'Connor;D. L. Olmeijer;M. E. Napierala;C. G. Cameron
  13. U. S. Patent 5,053,451 H. R. Allcock;S. Kwon
  14. Acc. Chem. Res. v.12 H. R. Allcock
  15. J. Membrane Science v.43 C. A. Allen;D. G. Cummings;R. P. McCaffrey
  16. Mathematics of Diffusion J. Crank
  17. Macromolecules v.29 H. R. Allcock;M. Z. Napierala;C. G. Cameron;S. J. M. O'Conner
  18. Macromolecules v.19 H. R. Allcock;S. Kwon
  19. Biomaterials v.9 H. R. Allcock;M. Gebura;S. Kwon;T. X. Neenan
  20. Chem. & Eng. News v.63 H. R. Allcock