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Chelation properties of poly(β‐diketone) polymer and its oxime toward heavy metal ions
Author(s) -
Hammad Eman M.,
Mubarak Mohammad S.
Publication year - 2008
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.27840
Subject(s) - chelation , lanthanide , metal ions in aqueous solution , metal , polymer , oxime , chemistry , divalent , inorganic chemistry , polymer chemistry , ion , materials science , nuclear chemistry , organic chemistry
The chelation behavior of poly(β‐diketone), polymer I, and poly(β‐diketone) oxime, polymer II, toward the divalent metal ions, Cu 2+ , Zn 2+ , Ni 2+ , and Cd 2+ , and the trivalent lanthanide metal ions, La 3+ , Nd 3+ , Sm 3+ , Gd 3+ , and Tb 3+ was investigated by a batch equilibration technique as a function of contact time, pH, and counter ion. Polymer II exhibited improved chelation characteristics toward lanthanide metal ions in comparison with polymer I and the metal‐ion uptake follows the order Tb 3+ ≈ Gd 3+ ≈ Sm 3+ > Nd 3+ ≈ La 3+ . On the other hand, polymer I showed relatively higher capacity than polymer II, toward the investigated divalent metal ions, where the metal‐ion uptake follows the order Cu 2+ > Cd 2+ ≈ Zn 2+ > Ni 2+ . © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008