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Polymeric chelates of the type [ML2] . where M = Ni(II), Cu(II), Zn(lI) or Co(ll), L = poly(resacetophenone diyl ethylene)s, and n = degree of polymerization, have been synthesized. Their structures have been elucidated on the basis of analytical, magnetic, electronic and IR spectral studies. Electronic spectra in conjunction with magnetic moments are in accord with an octabedral environment around the central metal ion in all polymeric chelates except Cu(lI) and Zn(lI) polymeric chelates which have been shown to possess square planar and tetrahedral geometries, respectively. IR spectral studies further suggest that the metal ions are coordinated through the oxygens of the carbonyl and the phenolic hydroxyl groups. All the chelates are paramagnetic except Zn(lI), which is found to be diamagnetic.

Poly(l,-acetylphenylene]butylene) was prepared by FriedcI-Craft polycondensation of 2-hydroxy, 4-methoxyacetophenone and 1,4-butane-dioi in presence of polyphosphoric acid catalyst. The polymer samples were characterized by IR spectra, TGA and their M. determined by nonaqueous titration. Viscosity measurents in DMSO showed that solutions exhibited normal behaviour.Polymers were eomplexed with Cu(II), Ni(ll), Mn(II), Co(II) and Zn(II) and characterized. Chelation and ion exchange properties were also studied by employing the batch equilibrium method.

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