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Water‐soluble acidic polyelectrolytes with metal‐removing ability
Author(s) -
Rivas Bernabé L.,
Pereira Eduardo D.,
Gallegos Paola,
Geckeler Kurt E.
Publication year - 2002
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.247
Subject(s) - polyelectrolyte , metal , sulfonic acid , polymer , metal ions in aqueous solution , inorganic chemistry , divalent , ion , materials science , carboxylic acid , polymer chemistry , chemistry , organic chemistry , metallurgy
Water‐soluble polymers containing carboxylic acid, phosphonic acid, and sulfonic acid groups were investigated as polychelatogens under different experimental conditions. The maximum retention capacity (MRC) of these polymers was determined at different pH and polymer–metal ion ratios. The metal ions investigated were: Ag(I), Cu(II), Co(II), Ni(II), and Cr(III). The MRC values of the divalent metal ions were found to be very similar and higher than those of the trivalent cations, and there was an important effect of the pH on the MRC. This indicates that the polymer–metal ion interactions were dominated by electrostatic forces. Copyright © 2003 John Wiley & Sons, Ltd.