| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5211730 | Reactive and Functional Polymers | 2006 | 6 Pages |
Abstract
Two new oxime containing polymers, poly(salicylaldoxime-3,5-diyl (piperazine N,Nâ²-bismethylene)), polymer I, and poly(2,4-dihydroxy-benzaldoxime-3,5-diyl (piperazine N,Nâ²-bismethylene)), polymer II, were prepared through Mannich-type condensation of the appropriate hydroxy benzaldoxime with formaldehyde and piperazine. The sorption properties of these polymers towards the trivalent lanthanide ions, Gd3+, Tb3+, Sm3+, Nd3+, and La3+ were studied by a batch equilibration technique as a function of contact time, pH, and counter ion. Polymer II exhibited improved chelation characteristics in comparison with polymer I and displayed faster rates of metal ion uptake and relatively higher capacities and selectivities.
Keywords
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Authors
Nashwa N. Shafa-Amry, Fawwaz I. Khalili, Kais A.K. Ebraheem, Mohammad S. Mubarak,