Oxygen diffusion via cobalt-porphyrin complexes fixed in a polymer matrix

Eishun Tsuchida, Hiroyuki Nishide, Manshi Ohyanagi, Osamu Okada

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Molecular oxygen diffusion through the [α,α′,α″,α‴-meso-tetrakis(o- pivalamidophenyl)porphinato]cobalt(II) (CoP) complexed with various ligands and fixed in a transparent and rubbery poly(butyl methacrylate) membrane was studied. Oxygen-binding kinetic and equilibrium constants of the CoP complexes in the membrane are spectroscopically in situ determined. The diffusion coefficients of the dissolved oxygen according to Henry's law and the adsorbed or coordinated oxygen to the complex according to the Langmuir isotherm are evaluated by analyzing oxygen permeation behavior through the membrane in terms of the combination of dual-mode transport theory and the spectroscopic data. The oxygen diffusion coefficient via the CoP complex increases with the oxygen-dissociation kinetic constant from the CoP complex.

Original languageEnglish
Pages (from-to)6461-6464
Number of pages4
JournalJournal of Physical Chemistry
Volume92
Issue number22
Publication statusPublished - 1988

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Porphyrins
Cobalt
Polymer matrix
porphyrins
cobalt
Oxygen
polymers
oxygen
matrices
Membranes
membranes
Kinetics
Molecular oxygen
diffusion coefficient
Equilibrium constants
Dissolved oxygen
Permeation
Henry law
Isotherms
transport theory

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Oxygen diffusion via cobalt-porphyrin complexes fixed in a polymer matrix. / Tsuchida, Eishun; Nishide, Hiroyuki; Ohyanagi, Manshi; Okada, Osamu.

In: Journal of Physical Chemistry, Vol. 92, No. 22, 1988, p. 6461-6464.

Research output: Contribution to journalArticle

Tsuchida, E, Nishide, H, Ohyanagi, M & Okada, O 1988, 'Oxygen diffusion via cobalt-porphyrin complexes fixed in a polymer matrix', Journal of Physical Chemistry, vol. 92, no. 22, pp. 6461-6464.
Tsuchida, Eishun ; Nishide, Hiroyuki ; Ohyanagi, Manshi ; Okada, Osamu. / Oxygen diffusion via cobalt-porphyrin complexes fixed in a polymer matrix. In: Journal of Physical Chemistry. 1988 ; Vol. 92, No. 22. pp. 6461-6464.
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