Conductive polymer composite and substrate

Patent metadata

Field	Value
Publication number	US-9991019-B2
Application number	US-201615244513-A
Country	US
Kind code	B2
Filing date	Aug 23, 2016
Priority date	Aug 27, 2015
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

A conductive polymer composite includes: a π-conjugated polymer, and a dopant polymer which contains a repeating unit of general formula (1) and having a weight-average molecular weight of 1,000-500,000. The conductive polymer composite which has excellent filterability and film-formability by spin coating, and can form a conductive film having high transparency and excellent flatness.

R 1 represents a hydrogen atom or methyl group; R 2 represents any of a single bond, ester group, and linear, branched, or cyclic hydrocarbon group having 1 to 12 carbon atoms, the hydrocarbon group optionally containing any one or more of an ether group, ester group, and amide group; “Z” represents any of a single bond, phenylene group, naphthylene group, ether group, and ester group; R 3 represents a hydrogen atom or alkyl group having 1 to 4 carbon atoms, and may be bonded to R 2 to form a ring; and “a” is a number satisfying 0<a≤1.0.

First claim

What is claimed is:

1. A conductive polymer composite comprising:
(A) a π-conjugated polymer, and
(B) a dopant polymer which contains a repeating unit shown by the following general formula (1) and having a weight-average molecular weight in the range of 1,000 to 500,000,

wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents any of a single bond, an ester group, and a linear, branched, or cyclic hydrocarbon group having 1 to 12 carbon atoms, the hydrocarbon group optionally containing any one or more of groups selected from an ether group, an ester group, and an amide group; “Z” represents any of a single bond, a phenylene group, a naphthylene group, an ether group, and an ester group; R 3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and may be bonded to R 2 to form a ring; and “a” is a number satisfying 0<a≤1.0.

2. The conductive polymer composite according to claim 1 , wherein the repeating unit in the component (B) includes one or more kinds selected from the following general formula (1-1) and the following general formula (1-2),

wherein R 1 has the same meaning as defined above; and a1 and a2 are each a number satisfying 0≤a1≤1.0, 0≤a2≤1.0, and 0<a1+a2≤1.0.

3. The conductive polymer composite according to claim 2 , wherein the component (B) further contains a repeating unit shown by the following general formula (2),

wherein “b” is a number satisfying 0<b<1.0.

4. The conductive polymer composite according to claim 3 , wherein the component (B) is a block copolymer.

5. The conductive polymer composite according to claim 2 , wherein the component (B) is a block copolymer.

6. The conductive polymer composite according to claim 2 , wherein the component (A) is a polymer formed by polymerization of one or more precursor monomers selected from the group consisting of pyrrole, thiophene, selenophene, tellurophene, aniline, a polycyclic aromatic compound, and a derivative thereof.

7. The conductive polymer composite according to claim 2 , wherein the conductive polymer composite has dispersibility in water or in an organic solvent.

8. A substrate having a conductive film formed thereon, wherein the conductive film is formed from the conductive polymer composite according to claim 2 .

9. The conductive polymer composite according to claim 1 , wherein the component (B) further contains a repeating unit shown by the following general formula (2),

wherein “b” is a number satisfying 0<b<1.0.

10. The conductive polymer composite according to claim 9 , wherein the component (B) is a block copolymer.

11. The conductive polymer composite according to claim 9 , wherein the component (A) is a polymer formed by polymerization of one or more precursor monomers selected from the group consisting of pyrrole, thiophene, selenophene, tellurophene, aniline, a polycyclic aromatic compound, and a derivative thereof.

12. The conductive polymer composite according to claim 9 , wherein the conductive polymer composite has dispersibility in water or in an organic solvent.

13. A substrate having a conductive film formed thereon, wherein the conductive film is formed from the conductive polymer composite according to claim 9 .

14. The conductive polymer composite according to claim 1 , wherein the component (B) is a block copolymer.

15. The conductive polymer composite according to claim 14 , wherein the component (A) is a polymer formed by polymerization of one or more precursor monomers selected from the group consisting of pyrrole, thiophene, selenophene, tellurophene, aniline, a polycyclic aromatic compound, and a derivative thereof.

16. The conductive polymer composite according to claim 14 , wherein the conductive polymer composite has dispersibility in water or in an organic solvent.

17. The conductive polymer composite according to claim 1 , wherein the component (A) is a polymer formed by polymerization of one or more precursor monomers selected from the group consisting of pyrrole, thiophene, selenophene, tellurophene, aniline, a polycyclic aromatic compound, and a derivative thereof.

18. The conductive polymer composite according to claim 1 , wherein the conductive polymer composite has dispersibility in water or in an organic solvent.

19. A substrate having a conductive film formed thereon, wherein the conductive film is formed from the conductive polymer composite according to claim 1 .

20. The substrate according to claim 19 , wherein the conductive film functions as a transparent electrode layer.

Assignees

• Shinetsu Chemical Co

Inventors

• Hatakeyama Jun
• Nagasawa Takayuki
• Hasegawa Koji

Classifications

• C08F297/026

  polymerising acrylic acid, methacrylic acid or derivatives thereof · CPC title

• H05K1/0313

  Organic insulating material · CPC title

• C08L2201/50

  Aqueous dispersion, e.g. containing polymers with a glass transition temperature (Tg) above 20°C · CPC title

• C08F20/38

  Esters containing sulfur · CPC title

• C08F212/12

  Monomers containing a branched unsaturated aliphatic radical or a ring substituted by an alkyl radical · CPC title