THERMOGRAVIMETRIC STUDIES OF THE METAL-COMPLEXES OF POLYSTYRENE-SUPPORTED ETHANOLAMINE

Thermogravimetric studies of the Co(II), Ni(II) and Cu(II) complexes o f ethanolamine functions supported on 2 mol% DVB-crosslinked polystyre ne were carried out. The thermal stability of the polymeric ligand inc reased on complexation with metal ions. This resulted from the formati on of stable ring structures on complexation. Thermal stability also d epended on the type of metal ion and followed the order: Co(II) > Cu(I I) > Ni(II) > uncomplexed resin. The preparation of the metal complexe s, characterisation, time course of complexation and recyclability are also discussed. (C) 1996 Elsevier Science Limited