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  • Chem Sci Trans., 2014, 3(1),  pp 19-28  

    DOI:10.7598/cst2014.576

    Research Article

    Synthesis, Characterization and Ion-Exchange Properties of Terpolymer Resin-II Derived from
    p-Hydroxybenzaldehyde, Thiourea and Ethylene Glycol

  • AMIT N. GUPTA, VINAY V. HIWASE and ASHOK B. KALAMBE
  • Department of Chemistry, Institute of Science, R. T. Road, Nagpur-440001, India
    Arts, Commerce and Science College, Arvi-442201, Dist.-Wardha, India
  • Abstract

    Ion-exchange resin (HBTE-II) was synthesized by polycondensation in the presence of polyphosphoric acid as a catalyst using monomers p-hydroxybenzaldehyde (0.2 M), thiourea (0.1 M) and ethylene glycol (0.4 M) at 120 0C. The terpolymer resin was characterized by elemental analysis, the number average molecular weight, UV-Visible, IR and 1H NMR spectrum. Chelating ion-exchange properties of this copolymer were studied for Bi3+, Sb3+, Zn2+ and Mg2+ ions. A batch equilibrium method was employed in the study of the selectivity of metal ion uptake involving the measurements of the distribution of a given metal ion between the polymer sample and a solution containing the metal ion. The study was carried out over a wide pH range and in media of various ionic strengths. The metal ions were estimated spectrophotometrically. The HBTE-II terpolymer resin was found to be selective chelating ion-exchange resin for Sb3+, Bi3+ and Zn2+.

    Keywords

    Polycondensation, Ion-exchange, Distribution ratio, Rate of metal ion uptake, Batch-equilibrium method

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