Abstract
The topochemically controlled polymerization of 6‐amino‐2,4‐hexadienoic acid in complexes with CdCl2, MnCl2 and FeCl2 is initiated by UV or 60Co‐γ‐radiation. Tacticity of the polymer, slight structural changes during transition from the monomer to polymer and control of reactivity by the type of ion in the matrix render the proposed course of reaction likely. The liberated amphoteric polyelectrolyte could be suitable as a polymeric complexing agent.