Preparation of electrically conductive polyaromatics
AssigneeBASF SE
InventorsHerbert Naarmann, Dieter Naegele, Klaus Penzien, Johannes Schlag
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Abstract
A process for the preparation of electrically conductive polyaromatics having conductivities greater than 10.sup.-2 S/cm, wherein from 0.5 to 15% by weight of an oxidizing Lewis acid, e.g. antimony pentafluoride or arsenic pentafluoride, or their NO.sup.+ - or NO.sub.2.sup.+ -salts, or a nitroaromatic, e.g. trinitrophenol or trinitrobenzenesulfonic acid, and/or a fluorine derivative, e.g. CF.sub.3 --COOH, or an acid, e.g. sulfuric acid, nitric acid or perchloric acid, is added to a polyaromatic, in the absence of moisture.
Claims4
A process for the preparation of an electrically conductive polyaromatic having an electrical conductivity greater than 10.sup.-2 Siemens/cm, said polyaromatic having the formula ##STR8## where X is ##STR9## Ar is phenylene, R is H or an aliphatic, cycloaliphatic or aromatic group, and n is an integer from 1 to 50 said process consisting essentially of treating said polyaromatic in the absence of moisture with 0.5 to 15% by weight, based on the polyaromatic, of an oxidizing Lewis acid.
Dependencies are inferred from the claim text.