Facilitated transport of molecular oxygen in membranes of macromolecular cobalt-porphyrin complex: Modification of dual-mode transport model

E. Tsuchida, Hiroyuki Nishide, M. Ohyanagi

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Abstract

Transport of molecular oxygen is facilitated in poly(butyl methacrylate) membranes containing the cobalt(II)-α, α′, α″, α″′-meso-tetrakis(o-pivalamidophenyl) porphyrin-l-methylimidazole (CoPIm) complex which forms oxygen adduct rapidly and reversibly. The facilitated transport of oxygen is studied by modifying a dual-mode transport model for gas permeation. The diffusion coefficient of oxygen via the fixed CoPIm complexes (Langmuir mode) is assumed to depend on oxygen concentration, and the modified dual-mode transport equation is described for the permeation steady state. The modified equation represents the effect of upstream oxygen pressure on the permeability. The oxygen permeation behavior through the macromolecular-metal complex membrane is discussed.

Original languageEnglish
Pages (from-to)1327-1338
Number of pages12
JournalJournal of macromolecular science. Chemistry
VolumeA25
Issue number10-11
Publication statusPublished - 1988 Jan 1

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Molecular oxygen
Porphyrins
Cobalt
Oxygen
Membranes
Permeation
Coordination Complexes
Metal complexes
Gases

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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abstract = "Transport of molecular oxygen is facilitated in poly(butyl methacrylate) membranes containing the cobalt(II)-α, α′, α″, α″′-meso-tetrakis(o-pivalamidophenyl) porphyrin-l-methylimidazole (CoPIm) complex which forms oxygen adduct rapidly and reversibly. The facilitated transport of oxygen is studied by modifying a dual-mode transport model for gas permeation. The diffusion coefficient of oxygen via the fixed CoPIm complexes (Langmuir mode) is assumed to depend on oxygen concentration, and the modified dual-mode transport equation is described for the permeation steady state. The modified equation represents the effect of upstream oxygen pressure on the permeability. The oxygen permeation behavior through the macromolecular-metal complex membrane is discussed.",
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T1 - Facilitated transport of molecular oxygen in membranes of macromolecular cobalt-porphyrin complex

T2 - Modification of dual-mode transport model

AU - Tsuchida, E.

AU - Nishide, Hiroyuki

AU - Ohyanagi, M.

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