Application of a synthetic water-soluble poly(N-maleyl glycine-co-acrylamide) as polychelatogen for inorganic ions in aqueous solutions |
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| Authors: | G del C Pizarro O G Marambio B L Rivas K E Geckeler |
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| Affiliation: | (1) Department of Chemistry, Tecnológica Metropolitana University, J.P. Alessandri 1242, Santiago, Chile, CL;(2) Department of Polymers, Faculty of Chemistry, University of Concepción, Casilla 160-C, Concepción, Chile, CL;(3) Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany, DE |
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| Abstract: | Summary
The water-soluble poly(N-maleyl glycine-co-acrylamide) (P(MG-co-Am)) reagent with strong complexing properties for the inorganic ions Cr(III), Co(II), Zn(II), Ni(II), Cu(II), Cd(II), Pb(II),
Hg(II), As(V), and Se(IV) was investigated in aqueous phase in conjunction with membrane filtration using the Liquid-phase
Polymer-based Retention (LPR) technique. The P(MG-co-Am) was shown to be useful for retention of different inorganic ions and their separation from elements not bound to the
polymeric reagent. The inorganic ion interaction with the hydrophilic polymer was determined as a function of pH and filtration
factor. At higher pH, the copolymer can be applied to the separation and preconcentration of most of the inorganic ions. Viscosimetric
measurements of the copolymers were performed in the presence of metal ions at different pH values.
Received: 8 July 1998/Revised version: 23 October 1998/Accepted: 27 October 1998 |
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