ABSTRACT
The deliberate control of reactivity at the electrode/solution interface represents one of the primary objectives of electrochemical research. Such control, if possible, would profoundly affect the areas of electrocatalysis, corrosion, analysis, electrochromics, and many others. The field of chemically modified electrodes (in its various forms) thus seeks to dictate and control the properties of the interface through its deliberate modification. This chapter presents this area of electro-chemical research with emphasis on redox polymers and extended structures. Due to the typically larger coverages involved, the electrochemical response of polymer films can be greatly complicated by the interplay of charge transfer and transport, polymer film motions, solvent swelling and other processes. As a result, the voltammetric responses obtained are much more difficult to interpret, and, in fact, a great deal of effort has been focused on the unravelling of these processes.
