Preparation of ethyleneamine functionalized crosslinked poly(acrylonitrile-ethylene glycol-dimethacrylate) chelating resins for adsorption of lead ions

ABSTRACT

Removal of lead ions was investigated by ethylenediamine, triethylenetetramine and tetraethylenepentamine functionalized polymeric adsorbent. Macroporous acrylonitrile-ethylene glycol-dimethacrylate copolymer beads were synthesized by suspension polymerization as already reported.^[17] The adsorbent was prepared by amination of copolymer synthesized from acrylonitrile-ethylene glycol-dimethacrylate. The adsorption study for removal of lead ions using functionalized poly(AN-EGDMA) copolymer as an adsorbent was carried out at room temperature at various solution concentrations of 0.483–2.4154 mmol/l at pH 4.6. Functionalized polymers were studied by Fourier transform infrared spectroscopy (FTIR). Scanning electron microscope-X-ray energy dispersive spectrometer (SEM-EDAX) was utilized to study an increase in nitrogen content of functionalized polymers.

KEYWORDS:

• Crosslinked polyacrylonitrile
• ethyleneamine functionalized resins
• lead
• adsorption isotherm
• kinetics study

Acknowledgements

The author is thankful to Dr. R. Vijayraghavan, Director of DRDE Gwalior, for his permission to publish this work and the Head, Synthetic Chemistry Division, for providing necessary facilities.