Intrinsically electrically conducting polymers

An active research area is currently the use of conducting polymers as OLED devices. These polymeric-organic electronic materials are varied in compositions. In 1957, the first intrinsic electrically conduction polymer. 

In the past decade, the potential of intrinsically electrically conductive polymers has transformed from a laboratory curiosity into commercial uses. A number of conducting polymers have been studied all of which exhibit a conjugated stmc-ture for a path of electron transfer -specifically when doped. Representative electrically conductive polymers include those shown in Figure... 

Stenger-Smith, J.D., 1998. Intrinsically electrically conducting polymers. Synthesis, characterization and their application. Prog. Polym. Sci. 23, 57—79. 

Linear polyacetylene is known to be an intrinsically electrically conductive polymer. The configuration could be cis, trans, or mixed. Do you think that the configuration would have any influence on the electrical conductivity ... 

During the past 30 years considerable research has been undertaken that has led to electrically conducting polymers that do not rely on the use of fillers, the so-called intrinsically conductive polymers. Such polymers depend on the presence of particles which can transport or carry an electric charge. Two types may be distinguished ... 

Recent studies have shown that this is not the case in polyacetylene improvements in synthesis and orientation have resulted in electrical conductivities as high as 10 S/cmA Furthermore, the absence of a metallic temperature dependence with resistivity decreasing as the temperature is lowered - implies that the measured conductivity is still limited by material imperfections. Consequendy, it is quite clear that the intrinsic electrical conductivity of polyacetylene and, by implication, of other conducting polymers, may be significantly greater than that of copper. 

Furthermore, intrinsically conducting polymers (ICPs) such as polyanilines (PANI), polypyrroles, and polyphenylenes have been used as part of conductive composites on account of their much higher conductivity than other polymers. They are often mixed with other polymers as investigated by Taipalus (2001) and Totsra and Friedrich (2004). On the other hand Dweiri (2007) have found the addition of PANI to a composite of PP/carbon black/graphite for bipolar plates to be unsuitable for processing due to the poor thermal stability of PANI. The company Bac2 is currently the only manufacturer to use a patented electrically conductive polymer called ElectroPhen in their composite bipolar plates. 

Poly(sulfur nitride) [(SN) ] was the first inorganic polymer with a backbone made up of nonmetallic elements to show an intrinsic electrical conductivity as high as 2.5 x 10 Scm at room temperature [354]. Parathiot anogen [(SCN)j[] is another similar inorganic polymer that was prepared electrochemical in the form... 

Functionalization can result in intrinsic, electrically conductive thermoplastics that also possesses optical properties. These electrically conductive FTPs have advantages over conventional plastics made conductive via the addition of conductive fillers and can offer controlled electrical conductivity. In addition, FTPS can offer enhanced phase compatibiUty in polymer blends. 

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