Polyvinylpyridine-based electrodes: sensors and electrochemical applications.

Polyvinylpyridine (PVPy) is a linearly structured polymer-containing aromatic heterocyclic compound. PVPy is easily prepared via radical polymerization of vinylpyridine using an initiator of azobisisobutyronitrile in which different haloalkanes can be used for the quaternization of pyridine units. The pyridine moieties of the polymer backbone can lead to an enhanced electrical conductivity in this polymeric material. For this reason, this vinyl polymer has been extensively applied in electrode organization for electrochemical applications. Thus, we aimed to review the uses of PVPy in the electrode structure and/or its application for the modification of electrochemical electrodes in systems such as sensors for monitoring and determining humidity and various chemicals. [ABSTRACT FROM AUTHOR]