Confirmation of the Existence of Hybrid Interpolymer Complexes

The “iodine test” has been proposed to confirm the formation of a hybrid interpolymer complex of polyvinyl alcohol. This test demonstrates that the inorganic component exhibits an unusual one-dimensional chain polymer structure within the complexes of polyvinyl alcohol with sodium tetraborate, boric acid, and certain zinc and cadmium halides. These findings indicate that hybrid interpolymer complexes constitute a significantly large and novel class of polymeric compounds.