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Synthesis of water‐insoluble functional copolymers containing amide, amine, and carboxylic acid groups and their metal‐ion‐uptake properties
Author(s) -
Rivas Bernabé L.,
Villegas Sandra,
Ruf Beatriz
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24755
Subject(s) - amide , chemistry , metal , metal ions in aqueous solution , ligand (biochemistry) , cadmium , polymer chemistry , acrylic acid , copolymer , copper , amine gas treating , carboxylic acid , polymerization , zinc , nuclear chemistry , chromium , inorganic chemistry , polymer , organic chemistry , biochemistry , receptor
The crosslinked poly[ N ‐(3‐dimethylamino)propylmethacrylamide] [P(NDAPA)] and poly[ N ‐(3‐dimethylamino)propylmethacrylamide‐ co ‐acrylic acid] [P(NDAPA‐ co ‐AA)] were synthesized by radical polymerization. The resins were completely insoluble in water. The metal‐ion‐uptake properties were studied by a batch equilibrium procedure for the following metal ions: silver(I), copper(II), cadmium(II), zinc(II), lead(II), mercury(II), chromium(III), and aluminum(III). The P(NDAPA‐ co ‐AA) resin showed a lower metal‐ion affinity than P(NDAPA), except for Hg(II), which was retained at 71% at pH 2. At pH 5, the resin showed a higher affinity for Pb(II) (80%) and Cu(II) (60%), but its affinity was very low for Zn(II) and Cr(III). The polymer ligand–metal‐ion equilibrium was achieved during the first 20 min. By changing the pH, we found it possible to remove between 60 and 70% of Cd(II) and Zn(II) ions with (1 M, 4 M ) HClO 4 and (1 M, 4 M ) HNO 3 . © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102:5232–5239, 2006