Electrically conductive polymer compositions and films made therefrom

Patent metadata

Field	Value
Publication number	US-8945427-B2
Application number	US-201013265002-A
Country	US
Kind code	B2
Filing date	Apr 23, 2010
Priority date	Apr 24, 2009
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

The present disclosure relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion including: (i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid; (ii) at least one highly-fluorinated acid polymer; and (iii) electrically insulative oxide nanoparticles.

First claim

What is claimed is:

1. An aqueous dispersion comprising:
(i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid;
(ii) at least one highly-fluorinated acid polymer; and
(iii) electrically insulative oxide nanoparticles, wherein

the acid equivalent ratio of the highly-fluorinated acid polymer to the non-fluorinated polymeric acid is no greater than 2.

2. The dispersion of claim 1 , wherein the electrically conductive polymer is selected from the group consisting of polythiophenes, poly(selenophenes), poly(tellurophenes), polypyrroles, polyanilines, polycyclic aromatic polymers, copolymers thereof, and combinations thereof.

3. The dispersion of claim 1 , wherein the electrically conductive polymer is selected from the group consisting of unsubstituted polyaniline, poly(3,4-ethylenedioxythiophene), unsubstituted polypyrrole, poly(4-aminoindole), poly(7-aminoindole), poly(thieno(2,3-b)thiophene), poly(thieno(3,2-b)thiophene), and poly(thieno(3,4-b)thiophene).

4. The dispersion of claim 1 , wherein the highly-fluorinated acid polymer is at least 90% fluorinated.

5. The dispersion of claim 1 , wherein the highly-fluorinated acid polymer is selected from a sulfonic acid and a sulfonimide.

6. The dispersion of claim 1 , wherein the highly-fluorinated acid polymer is a perfluoroolefin having perfluoro-ether-sulfonic acid side chains.

7. The dispersion of claim 1 , wherein the highly-fluorinated acid polymer is selected from the group consisting of a copolymer of 1,1-difluoroethylene and 2-(1,1-difluoro-2-(trifluoromethyl)allyloxy)-1,1,2,2-tetrafluoroethanesulfonic acid, a copolymer of ethylene and 2-(2-(1,2,2-trifluorovinyloxy)-1,1,2,3,3,3-hexafluoropropoxy)-1,1,2,2-tetrafluoroethanesulfonic acid, a copolymer of tetrafluoroethylene and perfluoro(3,6-dioxa-4-methyl-7-octenesulfonic acid), and a copolymer of tetrafluoroethylene and perfluoro(3-oxa-4-pentenesulfonic acid).

8. The dispersion of claim 1 , wherein the electrically insulative oxide nanoparticle is selected from the group consisting of silicon oxide, titanium oxides, zirconium oxide, molybdenum trioxide, vanadium oxide, aluminum oxide, zinc oxide, samarium oxide, yttrium oxide, cesium oxide, cupric oxide, stannic oxide, antimony oxide, tantalum oxides, and combinations thereof.

9. The dispersion of claim 1 , wherein the electrically insulative oxide is selected from the group consisting of silicon dioxide, titanium dioxide, and combinations thereof.

10. An electronic device comprising at least one layer made from the dispersion of claim 1 .

11. An aqueous dispersion comprising:
(i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid;
(ii) at least one highly-fluorinated acid polymer; and
(iii) electrically insulative oxide nanoparticles, wherein

the electrically insulative oxide nanoparticles have a particle size no greater than 50 nm.

12. The dispersion of claim 11 , wherein the electrically conductive polymer is selected from the group consisting of polythiophenes, poly(selenophenes), poly(tellurophenes), polypyrroles, polyanilines, polycyclic aromatic polymers, copolymers thereof, and combinations thereof.

13. The dispersion of claim 11 , wherein the electrically conductive polymer is selected from the group consisting of unsubstituted polyaniline, poly(3,4-ethylenedioxythiophene), unsubstituted polypyrrole, poly(4-aminoindole), poly(7-aminoindole), poly(thieno(2,3-b)thiophene), poly(thieno(3,2-b)thiophene), and poly(thieno(3,4-b)thiophene).

14. The dispersion of claim 11 , wherein the highly-fluorinated acid polymer is at least 90% fluorinated.

15. The dispersion of claim 11 , wherein the highly-fluorinated acid polymer is selected from a sulfonic acid and a sulfonimide.

16. The dispersion of claim 11 , wherein the highly-fluorinated acid polymer is a perfluoroolefin having perfluoro-ether-sulfonic acid side chains.

17. The dispersion of claim 11 , wherein the highly-fluorinated acid polymer is selected from the group consisting of a copolymer of 1,1-difluoroethylene and 2-(1,1-difluoro-2-(trifluoromethyl)allyloxy)-1,1,2,2-tetrafluoroethanesulfonic acid, a copolymer of ethylene and 2-(2-(1,2,2-trifluorovinyloxy)-1,1,2,3,3,3-hexafluoropropoxy)-1,1,2,2-tetrafluoroethanesulfonic acid, a copolymer of tetrafluoroethylene and perfluoro(3,6-dioxa-4-methyl-7-octenesulfonic acid), and a copolymer of tetrafluoroethylene and perfluoro(3-oxa-4-pentenesulfonic acid).

18. The dispersion of claim 11 , wherein the electrically insulative oxide nanoparticle is selected from the group consisting of silicon oxide, titanium oxides, zirconium oxide, molybdenum trioxide, vanadium oxide, aluminum oxide, zinc oxide, samarium oxide, yttrium oxide, cesium oxide, cupric oxide, stannic oxide, antimony oxide, tantalum oxides, and combinations thereof.

19. The dispersion of claim 11 , wherein the electrically insulative oxide is selected from the group consisting of silicon dioxide, titanium dioxide, and combinations thereof.

20. An electronic device comprising at least one layer made from the dispersion of claim 11 .

Assignees

• Hsu Che-Hsiung
• Hsu Veevin Tsao Kuo
• Du Pont

Inventors

• Hsu Che-Hsiung

Classifications

• C08L25/18

  Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen · CPC title

• C08L27/18

  Homopolymers or copolymers or tetrafluoroethene · CPC title

• H01B1/128

  comprising six-membered aromatic rings in the main chain, e.g. polyanilines, polyphenylenes · CPC title

• C08J2365/00

  Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C08J2307/00 - C08J2357/00, C08J2361/00 take precedence); Derivatives of such polymers · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title