Electrochromic contrast plate
First Claim
Patent Images
1. An electrochromic oligomer or polymer of the formulae
. . . —
- (D)r . . . —
(E—
B1—
Y)g—
. . . —
(F—
B2—
Z)h. . .
(CL) and
. . . —
(D)r . . . —
[E—
(B1—
Y)i—
(B2—
Z)j]g—
. . .
(CLX), in whichD, E and F are components of an oligomer or polymer chain, wherein the units D, E and F may be either randomly distributed or arranged in blocks, B1 and B2 are a bridging unit, Y and Z, independently of one another, are a radical OX2 or RED1, wherein OX2 is the radical of a reversibly electrochemically reducible redox system, and RED1 is the radical of a reversibly electrochemically oxidizable redox system, each f, g and h, independently of one another, is an integer from 1 to 100,000, wherein f+g+h>
2, and each f and h, independently of one another, is optionally 0, and each i and j, independently of one another, is an integer from 1 to 100.
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Abstract
The invention relates to electrochromic side-chain oligomers or polymers which can be used as electrochromic media.
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Citations
4 Claims
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1. An electrochromic oligomer or polymer of the formulae
. . . —- (D)r . . . —
(E—
B1—
Y)g—
. . . —
(F—
B2—
Z)h. . .
(CL) and
. . . —
(D)r . . . —
[E—
(B1—
Y)i—
(B2—
Z)j]g—
. . .
(CLX),in which D, E and F are components of an oligomer or polymer chain, wherein the units D, E and F may be either randomly distributed or arranged in blocks, B1 and B2 are a bridging unit, Y and Z, independently of one another, are a radical OX2 or RED1, wherein OX2 is the radical of a reversibly electrochemically reducible redox system, and RED1 is the radical of a reversibly electrochemically oxidizable redox system, each f, g and h, independently of one another, is an integer from 1 to 100,000, wherein f+g+h>
2, and each f and h, independently of one another, is optionally 0, andeach i and j, independently of one another, is an integer from 1 to 100. - View Dependent Claims (2, 3, 4)
in which f is an integer from 0 to 10,000, each g and h, independently of one another, is an integer from 1 to 10,000, wherein OX2 and/or RED1 can have different meanings in each recurring unit. -
3. An electrochromic side-chain oligomer or polymer according to claim 1 in which
D represents the formula
—- CHY10—
CHY11
(CLXXI), andE and F, independently of one another, represent the formula
—
CHY12—
CHY13—
(CLXXII),in which Y10 and Y12 independently of one another, are hydrogen or C1- to C4-alkyl, Y11 is hydrogen, halogen, C1- to C4-alkyl, aryl or —
COO—
C1- to C8-alkyl, andY13 is a direct bond or one of the bridges of the formula —
O—
, —
CO—
O—
, —
CO—
NH—
or —
C6H4—
to B1 or B2.
- CHY10—
-
4. An electrochromic side-chain oligomer or polymer according to claim 2 in which
D represents the formula
—- CHY10—
CHY11
(CLXXI), andE and F, independently of one another, represent the formula
—
CHY12—
CHY13—
(CLXXII),in which Y10 and Y12 independently of one another, are hydrogen or C1- to C4-alkyl, Y11 is hydrogen, halogen, C1- to C4-alkyl, aryl or —
COO—
C1- to C8-alkyl, andY13 is a direct bond or one of the bridges of the formula —
O—
, —
CO—
O—
, —
CO—
NH—
or —
C6H4—
to B1 or B2.
- CHY10—
- (D)r . . . —
Specification