Polymer electronic conducting polymers

Conducting Polymers Electronically conducting polymers (such as polypyrrole, polythiophene, and polyaniline) have attracted considerable attention due to their ability to switch reversibly between the positively charged conductive state and a neutral, essentially insulating, form and to incorporate and expel anionic species (from and to the surrounding solution), upon oxidation or reduction ... [Pg.124]

New Engineering Thermoplastics New High Performance Thermosets Thermotropic Liquid Crystals Lyotropic Liquid Crystals Molecular Composites Advanced Composites Non-Linear Optical Polymers Electronically Conducting Polymers... [Pg.56]

Among the electroactive polymers, electronically conducting polymers such as polypyrrole and polythiophene and piezoelectric polymers such as polyvinylidine fluoride (PVDF) are the most promising with regard to tissue engineering applications. [Pg.1032]

Subsequent generations of electrocatalytically active systems use deposited three-dimensional chemical microstructures, these are the polymer modified electrodes. These multilayer polymeric structures contain redox-active groups. Typical examples of the latter include redox polymers, electronically conducting polymers, and ionomer films loaded with redox-active species or loaded ionomers. Much emphasis is placed on these second-generation systems their operational characteristics under steady-state conditions are elucidated mainly by Andrieux and Saveant and Albery and Hillman. The fundamental characteristic of these second-generation polymer-based electrocatalytic systems is that their electrochemically active centres contained within the polymer matrix exhibit a dual purpose. They must be efficient electron transporters (the layer must have reasonable electronic or redox conductivity) as well as display i.e., good inherent electrocatalytic activity. [Pg.239]

Polymers. Electronically conductive polymers may also be used as cathode materials in rechargeable lithium batteries. The most popular polymers are polyacetylene, polypyrrole, polyaniline, and polythiophene, which are made conductive by doping with suitable anions. The discharge-charge process is a redox reaction in the polymer. The low specific energy, high cost, and their instability, however, make these polymers less attractive. They have been used in small coin-type batteries with a lithium-aluminum alloy as the anode. [Pg.1020]

This article addresses the synthesis, properties, and appHcations of redox dopable electronically conducting polymers and presents an overview of the field, drawing on specific examples to illustrate general concepts. There have been a number of excellent review articles (1—13). Metal particle-filled polymers, where electrical conductivity is the result of percolation of conducting filler particles in an insulating matrix (14) and ionically conducting polymers, where charge-transport is the result of the motion of ions and is thus a problem of mass transport (15), are not discussed. [Pg.35]

Pickup, P. G. Electrochemistry of Electronically Conducting Polymer Films 33... [Pg.607]

Charge transfer kinetics for electronically conducting polymer formation, 583 Charge transport in polymers, 567 Chemical breakdown model for passivity, 236... [Pg.627]

Electron transfer mechanism Butler-Volmer kinetics and, 587 in electronically conducting polymers, 568... [Pg.631]

Impedance, for measurement of the potential of zero charge, 35 Impedance blocks, for polypyrrole, 577 Impedance spectroscopy of electronically conducting polymers, 576 Indium... [Pg.633]

Quantum chemical calculations, 172 Quantum chemical method, calculations of the adsorption of water by, 172 Quantum mechanical calculations for the metal-solution interface (Kripsonsov), 174 and water adsorption, 76 Quartz crystal micro-balance, used for electronically conducting polymer formation, 578... [Pg.641]

The final chapter, by Peter Pickup of Memorial University of Newfoundland, gives a comprehensive account of the major and rapidly developing field of the electrochemistry of electronically conducting polymers and their applications. Following the discovery of these materi-... [Pg.652]