A Polypyrrole (PPy) is a chemical compound formed from a number of connected pyrrole ring structures. For example a tetrapyrrole is a compound with four pyrrole rings connected. Polypyrroles are conducting polymers of the rigid-rod polymer host family. Pyrrole is a heterocyclic aromatic organic compound. ... Almost all organic polymers are electrical insulators. ...
Polypyrroles are also called pyrrole blacks or polypyrrole blacks.
In a series of papers in 1963, Australians DE Weiss and coworkers reported high conductivity in iodine-"doped" oxidized polypyrrole fls.
This was the "ON" state of a bistable switch using DOPA Melanin, a mixed copolymer of polyacetylene, polypyrrole, and polyacetylene.
This uses oxidized iodinated polypyrrole rather than oxidized iodinated polyacetylene, but is otherwise rather similar to what nominally won the Nobel.
Polypyrrole is ordinarily synthesized by either oxidative, chemical or electrochemical polymerization of pyrrole.
The amount of polypyrrole produced upon exposure to pyrrole vapor was dependent on the iron(III) chloride concentration in the foam.
No polypyrrole debris was observed either when the foam was cut for scanning electron microscopy or in the micrograph, which indicates that the polymerization technique effectively isolates the conductive polymer within the dense polymer phase.
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