Polymerization of thiophene and its derivatives

Details Polymerization of thiophene and its derivatives Polymerization of thiophene and its derivatives

1990-05-30

1991-01-22

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 59R, 526256, C25B 302

Patent

active

049868861

ABSTRACT:
Electrically conductive polythiophene and its derivatives are prepared by polymerizing compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, R.sup.3, --OR.sup.3 or --SR.sup.3 ; and R.sup.3 is aryl of 6 to 12 carbons or aliphatic of 1 to 12 carbons; comprising reacting the compound of formula I in the presence of an initiator, the initiator comprising a 2-substituted thiophene nucleus which has a lower oxidation potential than the compound of formula I and which is capable of being incorporated into the polymer resulting from the polymerization reaction; a chemical oxidant or an applied electrochemical potential; and a non-aqueous organic solvent.

REFERENCES:
patent: 3557068 (1971-01-01), Huber
patent: 4599194 (1986-07-01), Frommer et al.
patent: 4657985 (1987-04-01), Dray et al.
patent: 4707527 (1987-11-01), Dray et al.
K. Tamao et al., Tetrahedron, "Nickel-Phosphine Complex-Catalyzed Grignard Coupling-II", 38 (22), pp. 3347-3354 (1982).
Gerard Tourillon, Handbook of Conducting Polymers, "Polythiophene and Its Derivatives", T. A. Skotheim, Ed., Marcel Dekker, NY, 1, pp. 293-350, (1986).

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