COMPLEXING PROPERTIES OF POLY-DIBENZO-CROWN ETHER RESINS TOWARDS INORGANIC CATIONS - CASE OF POLY-DB18-C6

This article deals with the complexation of various cations (alkali, a lkaline earth ions and also heavy or precious metal ions) by poly-dibe nzo-18-crown-6. This electrochemically synthesized polymer is able to complex statistically one cation for two basal polymeric units T. Comp lexing properties of the resin towards gold ions appear very interesti ng. Results obtained after a long duration of contact between cations and the polymer aim to describe preliminary complexing properties of t he polymer at equilibrium, to show that these properties are not only governed by the affinity of the cations for the polymer crown ether un it and to point out the factors influencing the complexing properties of such compounds.