Preparation of a New Polystyrene Supported-Ethylenediaminediacetic Acid Resin and its Sorption Behavior toward Divalent Metal Ions

Abstract

A new polystyrene-supported ethylenediaminediacetic acid resin has been synthesized through a reaction between the amination of the commercially available 4-chloromethyl polystyrene polymer with ethylenediamine and the subsequent carboxymethylation with monobromoacetic acid, using ethylenediamine as spacer. The chelation behavior of this resin toward the divalent metal ions Cu 2+ , Ni 2+ , Zn 2+ , and Pb 2+ in aqueous solutions was investigated. Batch equilibration experiments were carried out as a function of contact time, pH, amount of metal-ion, and polymer mass. The amount of metal-ion uptake of the polymer was determined by using atomic absorption spectrometry (AAS). Results of the investigation revealed that the resin exhibited higher capacities and a more pronounced adsorption toward Cu 2+ and that the metal-ion uptake follows the order: Cu 2+ > Zn 2+ > Ni 2+ > Pb 2+ . The adsorption and binding capacity of the resin toward the various metal ions investigated are discussed.

Preparation and Characterization of Styrene Bearing Diethanolamine Side Group, Styrene Copolymer Systems, and Their Metal Complexes

“…Only some of them showed a difference of about two units, which is consistent with the literature [22]. The SEM images of the ligands and metal complexes are given in .…”

“…This is the peak change of -OH band showing the coordination participation with metal ions. These broad peaks include not only the fraction of the moieties of the ligands but also complex formation [22]. The C=C stretching vibration on the aromatic ring was observed between 1600 and 1603 cm −1 and the sharp peaks at 1365 cm −1 and 1100-1250 cm −1 were referred to the -C-N stretching vibration [23].…”

Synthesis, Characterization, and Dielectric Behaviors of 4-Diethanolaminomethyl Styrene and Benzyl Methacrylate Copolymer and Its Metal Complexes

“…ose of metal complexes of Co(II), Ni(II), and Zn(II) shifted to a higher frequency. e peak intensity depending on the formation of the complexes increased as a result of interaction between metal ions and -OH [23,24]. While the C�O peak in the ligand was seen at 1731 cm −1 , these bonds in the Co(II), Ni(II), and Zn(II) metal complexes were observed at 1723, 1727, and 1723 cm −1 , respectively.…”

Synthesis, density functional theory studies, and sorption properties toward some divalent heavy metal ions of a new polystyrene‐supported 4‐(5‐mercapto‐1,3,4‐thiadiazol‐2‐ylimino) pentan‐2‐one polymer

“…Sulfur can be present in the form of thiocarbamate, thioester, thiol and disulphide function . In this context, synthesis of polymers containing functional groups, particularly amino (‐NH), carboxylic (‐COOH), or mercaptopropyl (‐SH) functions, has received great attention, and several research groups have studied the adsorption of heavy metal ions using polymers containing carboxylic groups (‐COOH) and ‐NH…”