O2/n2‐separation by polymer‐bound cobalt complexes

Hiroyuki Nishide, Takayuki Suzuki, Yuji Soejima, Eishun Tsuchida

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Abstract

Facilitated or complexation‐mediated transport of oxygen in the solid membrane containing a fixed carrier was described, by using the polymer‐bound cobalt Schiff's base chelate (CoS) and cobaltporphyrin (CoP). α3 β‐Substituted cobaltporphyrin derivatives were synthesized: The oxygen‐binding reaction to cobalt was affected by the cavity structure on porphyrin, i.e., unbulky amido‐substituted groups such as acetylamido‐ and acrylamido‐substituents enhanced oxygen‐binding and ‐dissociation rate constant or provided an oxygen‐binding pathway. Oxygen transport through the membranes of these polymer‐bound CoP derivatives was selectively augmented due to the rapid and reversible oxygen‐binding. Diffusion constants via the fixed CoPs correlated to the characteristics of oxygen‐binding reaction.

Original languageEnglish
Pages (from-to)145-156
Number of pages12
JournalMacromolecular Symposia
Volume80
Issue number1
DOIs
Publication statusPublished - 1994

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Nishide, H., Suzuki, T., Soejima, Y., & Tsuchida, E. (1994). O2/n2‐separation by polymer‐bound cobalt complexes. Macromolecular Symposia, 80(1), 145-156. https://doi.org/10.1002/masy.19940800111