Novel Terpolymer Resin: Synthesis, Characterization and its Applications

Terpolymer resin derived from 8-hydroxyquinoline and anthranilic acid with formaldehyde was synthesized by conventional method using glacial acetic acid as reaction medium in 1:1:2 mole ratios at 140 degrees C for 8 h. The resulting terpolymer was characterized by FTIR, H-1-NMR, C-13-NMR spectral studies, and elemental analysis. The molecular weight of the terpolymer was measured using Brooke Field viscometer. The physico-chemical parameters and the surface morphology were determined for the terpolymer. The thermal stability of the terpolymer resin was investigated by thermogravimetric analysis (TGA). The electrical conductivity of the terpolymer resin was also measured at various concentrations and temperatures using Gans instrument. The chelation ion-exchange property of the terpolymer showed a powerful adsorption towards specific metal ions like Zn2+, Mn2+, Cu2+, Pb2+ and Mg2+. A batch equilibration method was adopted to study the selectivity of the metal ion uptake involving the measurement of the distribution of the given metal ion between the polymer sample and a solution containing the metal ion over a wide range of concentrations and pH of different electrolytes.