POLYMER-SUPPORTED CATALYSTS - PREPARATION AND CHARACTERIZATION OF COMPLEXES BETWEEN PALLADIUM DERIVATIVES AND OLIGOMERIC ARAMIDES

Oligomeric aramides of the phenyleneterephthalamide structural type, impregnated with Pd salts, have been prepared and characterized. For a better understanding of the type of interactions between Pd and these oligomers, the corresponding monomeric model compound and simpler molecules have been investigated by several techniques. The results obtained establish that a coordination complex is formed through a specific linkage between Pd and the primary amino groups present as chain terminals both in the macromolecular species as well as in the model compound. No evidence has been found of significant bond interactions involving either carboxyl or secondary amido groups. © 1990.