US 7,923,530 B2Granted

Electrochromic polymer material

AssigneeNational Institute for Materials Science

InventorsMasayoshi Higuchi, Yuhki Ohtsuka, Akari Hayashi, Dirk G. Kurth

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Abstract

Provided are (1) a terpyridine monomer that has a strong ability to coordinate with metal atoms, and (2) a polymer material that can be readily switched between a colored state and a colorless state by controlling the electrical potential applied to it and that can be processed. A bis-terpyridine monomer of a first invention comprises a first terpyridyl substituent (A), a second terpyridyl substituent (B), and a spacer that contains at least one benzene ring and links the substituents (A) and (B). A polymer material of a second invention comprises a bis-terpyridine derivative derived from the monomer according to the first invention, a metal ion and a counter anion, or comprise first to Nth bis-terpyridine derivatives (N is an integer of 2 or greater), first to Nth metal ions (N is an integer of 2 or greater) and first to Nth counter anions (N is an integer of 2 or greater).

Claims2

Dependent claims

A linear electrochromic polymer material comprising first to Nth bis-terpyridine derivatives (N is an integer of 2 or greater), first to Nth metal ions (N is an integer of 2 or greater) and first to Nth counter anions (N is an integer of 2 or greater), the electrochromic polymer material being represented by the following formula:

where M1, . . . , MN are first to Nth different metal ions, respectively (N is an integer of 2 or greater);
R1, . . . , RN are each independently a spacer that contains a carbon atom or a hydrogen atom, or directly links corresponding terpyridyl groups to each other (N is an integer of 2 or greater);
R11, . . . , R1N, R21, . . . , R2N, R31, . . . , R3N, R41, . . . , R4N are each independently a hydrogen atom, an aryl group or an alkyl group (N is an integer of 2 or greater);
n1, . . . , nN are each an integer of 2 or greater indicating the degree of polymerization;
and the first to Nth counter anions are identical to, different from, or partly equal to one another.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/084,047Filed 9 May 2006
Priority: JP 2005-30829024 Oct 2005
Published: US 2009/0270589 A129 Oct 2009
Granted: 12 Apr 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

C07D 213/53
Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom: nitrogen atoms
G02F 1/15165
Comprising organic material: polymers
C07D
Heterocyclic compounds
G02F
Optical devices or arrangements for the control of light by modification of