Poly(quinone) and preparation and use of same

Details Poly(quinone) and preparation and use of same Poly(quinone) and preparation and use of same

1994-09-08

1996-12-17

Dodson, Shelley A.

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

Synthetic resins

From ketone or ketene reactant

C08G 600

Patent

active

055854540

ABSTRACT:
An alkyl group-substituted poly(quinone) useful as a material for an electrochromic device and an n-type semiconductor device, includes a repeating unit, has a polymerization degree (n) of not less than 20, includes a .pi.-conjugated system, and contains, as the repeating unit, bivalent residues of dihalogenated aromatic compounds of alkyl group-substituted quinones in which the alkyl group has from 1-8 carbon atoms and the bivalent residues are obtained by removing halogen atoms at two locations. A method for producing the alkyl group-substituted poly(quinone) includes dehalogenating and polycondensing to polymerize a dihalogenated aromatic compound of an alkyl group-substituted quinone by removing halogen atoms at two locations in the presence of a zero-valent nickel compound, whereby the zero-valent nickel compound withdraws halogens from the dihalogenated aromatic compound and causes coupling between aromatic groups thereof. Alternatively, the polymerization may be accomplished by electrochemical reduction in the presence of a divalent nickel compound.

REFERENCES:
patent: 4049537 (1977-09-01), Plumlee et al.
patent: 4895705 (1990-01-01), Wrighton et al.
patent: 5030533 (1991-07-01), Bluhm et al.

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