Progress of Cupric Complex Formation into Poly(vinyl alcohol) Substrates in Swollen Film State

Abstract

In the complex formation between swollen poly(vinyl alcoho1)(PVA)membrane and copper(II)ion in aqueous solutionof copper(II)amine complex, the progress of the reaction into ligand substrate was invesgated by the cylindrical film roll method proposed by M. Sekido and K. Matsui as the method determing diffusion coefficent (D_(c)) of dyes in the multiple polymer membrane. The results show that in the system where complex formation occurs easily the combinationof Cu(II)ion with hydroxyl groups in PVA molecules has proceeded up to inner layers and the D_(c)', values are larger as compared with the system where the complex is more difficultry formed.