Dress Up As Albert Ei

Conducting polymers, also called synthetic metals were discovered in 1974 and since then have generated great interest and rapid growth in electronic engineering thermoplastics.

Most produced organic polymers are excellent electrical insulators. Conductive polymers, almost all organic, have delocalized bonds (often in an aromatic group) forming a structure similar to that of silicon. When voltage is applied between the two bands increases the electrical conductivity, are therefore transistors. Almost all known conducting polymers are semiconductors with its banded structure, although some drivers behave as metals. The main difference between conducting polymers and inorganic semiconductors is the mobility of electrons, until recently, much less conductive polymers - a gap that science continues to shrink. Besides its fundamental interest in chemistry, this research has led to many new applications such as light emitting diodes, numerous video screens, the new markings on the products in supermarkets, the processing of photographic film, etc..

Plastics drivers have a great future in information technology.

In the 1970, three U.S. scientists showed that doping polyacetylene film (in this case, oxidizing it with iodine vapor), its electrical conductivity increased a thousand times, comparable to that of metals such as copper and silver. The optical properties of materials were also amended and emitting light.

for the discovery and development of conductive polymers, particularly of polyacetylene doped with iodine was awarded the Nobel Prize in chemistry in 2000 to Alan J.

Heeger. USA, University of California, Santa Barbara. Alan G.

MacDiarmid. U.S. and New Zealand, University of Pennsylvania.

Hideki Shirakawa. Japan, Tsukuba University, Tokyo.

The main advantage of the polymers is their ease of production. Conductive polymers are made of simple plastic and therefore combine the flexibility, strength, elasticity of elastomers with the conductivity of a metal or a doped hybrid polymer.

Maria Linares 19881179 EES

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http://es.wikipedia.org/wiki/Polímeros_conductores