Electron, Ion and Solvent Exchange in Redox Polyelectrolyte Self-Assembled Multilayers

MARIO TAGLIAZUCCHI,; FEDERICO WILLIAMS; IGAL SZLEIFER; ERNESTO J. CALVO

Philadelphia, PA. Estados Unidos

Simposio; ACS Fall Meeting 2008 PMSE Symposium; 2008

American Chemical Society (ACS)

We have shown experimental evidence of electron, ion and solvent exchange in redox PEM films under electrochemical oxidation and reduction perturbation. The class of ion exchanged with the electrolyte can be controlled by suitable choice of the solution pH during selfassembly and testing. A molecular theory that explicitly accounts for all the shape and size of all species, the different interactions and the acid-base and redox equilibria describes the structure and strong coupling between the ionic species. It predicts some of the experimental evidences discussed.