NEW WAYS FOR THE PREPARATION OF LB MULTILAYERS OF POLYMERIC METAL-COMPLEXES

Two routes to obtain well-ordered Langmuir-Blodgett (LB) films from po lymeric metal complexes were evaluated. Due to the chemical and struct ural diversity of metal complexes the methods have to work with differ ent complexes. Two different ways have been investigated. Firstly, lig and functions were introduced in amphiphilic maleic acid copolymers. T o these polymers a lot of coordinatively unsaturated precursor complex es may be attached. The complexes' geometries have a strong influence on their orientation in the multilayers. Secondly, bifunctional amphip hilic ligands on the basis of methylene-bis-salicylidene hexadecylamin e are able to form linear coordination polymers with bivalent metal ca tions. As in the first case it has been proved to be the best way to f orm the polymeric metal complexes directly at the water surface in an interfacial reaction between the dissolved metal component and the spr ead amphiphilic ligand or polymer, respectively. The formation of the polymeric complexes was studied by appropriate monolayer experiments a nd LB layers were investigated by spectroscopic methods.