Epoxidized Styrene-Butadiene-Styrene Block Copolymer Membrane Complexes with Cobalt Schiff Bases for Oxygen Permeation

Jen Ming Yang, Ging Ho Hsiue*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

33 Scopus citations

Abstract

The complex formation of epoxidized styrene-butadiene-styrene triblock copolymer (ESBS) with cobalt Schiff base (CoS) in chloroform solution is studied. Facilitated transport of molecular oxygen in ESBS membranes containing various cobalt Schiff bases as fixed carriers of oxygen, and oxygen permeability in ESBS membranes and oxygen-binding ability to the cobalt Schiff base, are studied. Due to the reversible absorption of oxygen by ESBS-CoS, the permeation of oxygen is observable for the lower upstream pressure and can be explained as a dual-mode process. The facilitation is enhanced in the polymeric complexed membrane by the higher oxygen dissociation constant and the lower crystallinity of the ESBS-CoS membrane.

Original languageEnglish
Pages (from-to)4010-4016
Number of pages7
JournalMacromolecules
Volume24
Issue number14
DOIs
StatePublished - 01 07 1991
Externally publishedYes

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