RESEARCH OF COMPLEX FORMATION OF POLYETHYLENIMINE WITH COPPER (II), NICKEL (II), COBALT (II) IONS.
There is described the influence of polyethylenimine globule structure on complexation with copper (II), nickel (II) and cobalt (II) ions. There are determined the values of the coordination number with the change of the pH of the solution for the complexes of ethylenediamine, diethylenetriamine and polyethylenimine with metal ions. It is investigated that the complexation of these metal ions with low molecular weight amines passes through three stages and with PEI through two stages.