High Oxygen Permeation and Persistent Oxygen-Carrying in a Poly(vinylimidazole-co-fluoroalkyl methacrylate)-Cobaltporphyrin Membrane

被引：0
|
作者：
Baoqing Shentu
Hiromi Shinohara
Hiroyuki Nishide
机构：
[1] Waseda University,Department of Applied Chemistry
来源：
Polymer Journal | 2001年 / 33卷
关键词：
Membrane; Poly(vinylimidazole); Poly(fluoroalkyl methacrylate); Cobaltporphyrin; Facilitated Transport; Oxygen Permeability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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 FIm even in a humid atmosphere (half-lifetime >200 days) due to the hydrophobic property of the FIm copolymer.
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页码：807 / 811
页数：4
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