Electrochromic copolymers including vinyl alcohol or vinyl aceta

Details Electrochromic copolymers including vinyl alcohol or vinyl aceta Electrochromic copolymers including vinyl alcohol or vinyl aceta

1995-04-03

1996-10-01

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

525 60, 526331, C08F22806, C08F21804

Patent

active

055612067

ABSTRACT:
Disclosed is a copolymer represented by the following general formula (1): ##STR1## wherein R.sub.1 represents a group based on a polymer or a copolymer possessing electroconductivity and inducing coloration or discoloration on being oxidized or reduced, R.sub.2 and R.sub.3 represent independently a hydrogen atom or an alkyl group having 1 to 1,000 carbon atoms, A represents a group possessing polarity and exhibiting affinity for ions, and L and M are independently an integer of at least 1, providing that the total degree of polymerization is an integer in the range of 10 to 12,000. The copolymer may be a block copolymer or a random copolymer. This copolymer exhibits electrochromism and, therefore, is useful as a coloring-discoloring material which induces coloration or discoloration on being oxidized or reduced, particularly as an electrochromic substance used in an electrochromic display device.

REFERENCES:
patent: 5243004 (1993-09-01), Funatsu
Perspective in Polymer Science, Interscience Publishers, pp. 175, 181 (1966).
Preparation of Polymer Electrochromic Materials, Chemical Abstracts, vol. 113, No. 16, Abstract No. 133478, p. 49, col. 1, (1990).

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