A comparative study on metal ion uptake behavior of chelating resins derived from the formaldehyde-condensed phenolic Schiff bases of 4,4′-diaminodiphenylsulfone and hydroxybenzaldehydes

Abstract

Three reactive and functional polymers were synthesized by reacting formaldehyde with the phenolic Schiff bases derived from 4,4 0diaminodiphenylsulfone and o-, m-, and p-hydroxybenzaldehydes, respectively. The metal ion uptake behavior of these resins towards Cu 2+ , Ni 2+ , Co 2+ , and UO 2þ 2 ions in dilute aqueous media was studied. The optimum conditions for the absorption of metal ions were determined by varying the various parameters like contact time, size of the sorbents, concentration of the metal ion solutions, and the 229

Synthesis and Characterization of Poly (1,4-Benzenedimethylene Phthalate) and the Study of its ability to sorb Pb(II), Cd(II), and Zn(II) ions

“…of polymer was confirmed by FT-IR, 1 H NMR, 13 C NMR, elemental analysis, SEM and thermal analysis. The sorption properties of the synthesized polymer toward Pb(II), Zn(II), and Cd(II) in aqueous solutions were examined under various experimental conditions using both batch and column experiments.…”

“…The signal of the carbonyl carbon atom of the ester group appeared at δ = 167 ppm. The 13C-NMR spectrum of the polymer is shown in Figure (2), and the1H-NMR and 13 C-NMR spectral data for the polymer assigned to the various proton and carbon atoms are presented in Table 1 (Figures 3 & 4).…”

Synthesis, Photostudies, Biological Activity, Metal Complexes and Theoretical Study from New Schiff Bases Derived from 3-hydroxy Benzaldehyde and 1,3-Phenylene di amine

“…Schiff bases derived from m-hydroxybenzaldehyde showed many applications for metal ion complexes (4)(5)(6)(7). Reactive and functional Schiff bases polymers were synthesized and studied.…”

Synthesis and Characterization of the Polymeric Phenolic Schiff Bases Containing Aminothiazole Moiety

“…The Schiff bases having multiple coordination sites are known to form complexes with transition metal ion readily [19][20][21] present in a polymeric matrix they are expected to show affinity selectivity towards the metal ions at an appropriate pH. This simple idea inspired our research group to synthesize a number of chelating resins containing Schiff base moiety and study their metal ion uptake behavior [22][23][24][25][26][27][28] . Literature studies reveal that metal ion uptake behavior of resins containing Schiff bases of heterocyclic compounds especially aminothiazole Schiff bases are yet to be studied and also there is no report of antibacterial activity of thiazole compounds present in a resin matrix.…”