Abstract
The capabilities of Probe Beam Deflection (PBD) techniques for the study of ion exchange in electroactive polymers are described using three polymer systems as examples. Measurements of PBD signal along with cyclic voltammograms are used to investigate the ion exchange mechanism of a polypyrrole film in 1 M HCl, and of a polyaniline film in 1 M HClO 4. The determination of the diffusion coefficient of the exchanged species is used to elucidate the ion exchange mechanism of a ladder polymer (poly(o-phenylendiamine)) in 1 M HClO 4. The advantages and disadvantages of PBD techniques are discussed.
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