Synthesis, Characterization And Chelating Properties Of Polymeric Azo Dye Based On 8-Hydroxyquinoline-Formaldehyde Polymer

Abstract

The polymeric phenyl azo 8-hydroxyquinoline-Formaldehyde (PHQ-F) was prepared by coupling of phenyl diazonium salt with 8-hydroxyquinoline-Formaldehyde (8HQ-F) polymer. The resultant polymeric ligand designated as PHQ-F was characterized by elemental analysis, IR spectral features and thermogravimetry. The polymeric metal chelates of PHQ-F with Cu²⁺, Zn²⁺, Mn²⁺, Ni^2+,Fe⁺³ and Co²⁺ metal ions were synthesized and characterized by metal:ligand ratio, IR and reflectance studies, magnetic properties and thermogravimetry. The PHQ-F sample was also monitored for its chelating and metal ion-exchanging properties by batch equilibration method.