Neutrons for Science and Industry

Interdiffusion in polyelectrolyte multilayers

by Prof. Christiane Helm (Univ. Greifswald)

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Polyelectrolyte multilayers are ultrathin films prepared by sequential adsorption of oppositely charged polyelectrolytes. Using neutron reflectivity, the mobility of polyelectrolyte molecules within the film is determined. Tuning the inter- and intramolecular interactions, the diffusion coefficient of the polyanions can be varied by more than five orders of magnitude. 

Organized by

Dr. Christian Franz
Dr. Christian Lang