Chemical synthesis of conducting polypyrrole

Details Chemical synthesis of conducting polypyrrole Chemical synthesis of conducting polypyrrole

1986-10-09

1987-09-29

Lusignan, Michael R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Nitrogen-containing reactant

252500, 252519, 427121, 428268, 526258, C07D20730, C08G 7320, H04B 112

Patent

active

046970010

ABSTRACT:
Production of electrically conductive polypyrrole of enhanced stability by treating a liquid pyrrole with a solution of a strong oxidant, capable of oxidizing pyrrole to a pyrrole polymer, and oxidizing the pyrrole by such strong oxidant in the presence of a relatively large organic dopant anion, and precipitating a conductive polypyrrole. The strong oxidant, e.g., Fe.sup.3+ ion, and dopant anion, which can be an alkyl or aryl sulfonate, e.g., methylbenzenesulfonate, or a perfluorinated carboxylate, e.g., trifluoroacetate, anion, can be derived from a single compound, e.g., ##STR1## the anion serving as dopant for the polypyrrole.

REFERENCES:
patent: 4487667 (1984-12-01), Traynor
patent: 4567250 (1986-01-01), Naarmann et al.
patent: 4585695 (1986-04-01), Ogasawara et al.

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