Abstract
Acrolein oxime was polymerized under different conditions. Formation constants for poly(acrolein oxime)–copper(II) complexes were determined by applying the modified Bjerrum method. The polymers form stronger complexes than their monomeric analogues. The formation constants for polymer complexes are dependent on the oxime group content in the polymer used. An aqueous solution of polymer complexes can effectively absorb molecular oxygen. The mechanism of the absorption is considered to involve cyclic redox reaction of copper ions: a copper(II) ion is reduced by the coordinated poly(acrolein oxime) to a copper(I) ion and the resultant copper(I) ion is oxidized by oxygen to the copper(II) ion.
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