Polymer complexes of bis [2,6‐diaminopyridine sulphoxide] (DPS) with lead (II), cadmium (II) and zinc (II)

Polymer complexes of bis‐2,6‐diaminopyridine sulphoxide (DPS) with lead (II), cadimum (II) and zinc (II) chlorides were prepared and characterized by elemental analysis, IR, electronic spectroscopy H‐1‐NMR, magnetic susceptibility, thermal analysis and the activation energy of the polymerization were calculated.