High oxygen permeation and persistent oxygen-carrying in a poly(vinylimidazole-co-fluoroalkyl methacrylate)-cobaltporphyrin membrane

B. Shentu, H. Shinohara, Hiroyuki Nishide

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5 Citations (Scopus)


A membrane having both a selective oxygen-absorbing capability and a long operational lifetime was prepared by complexing picket-fence cobaltporphyrin (CoP) with poly(vinylimidazole-co-fluoropentyl methacrylate) (FIm) as a polymer-ligand. The oxygen-binding affinity of the CoP complexed in the membrane was larger than that in the solution state. Oxygen permeation was selectively facilitated with the CoP fixed in the membrane, and a high oxygen permeability (10-7 cm3(STP) cm cm-2 s-1 cmHg-1) maintaining the permselectivity was observed. The lifetime of the CoP as an oxygen-carrier was prolonged by complexing with Fire even in a humid atmosphere (half-lifetime > 200 days) due to the hydrophobic property of the FIm copolymer.

Original languageEnglish
Pages (from-to)807-811
Number of pages5
JournalPolymer Journal
Issue number10
Publication statusPublished - 2001



  • Cobaltporphyrin
  • Facilitated Transport
  • Membrane
  • Oxygen Permeability
  • Poly(fluoroalkyl methacrylate)
  • Poly(vinylimidazole)

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

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