Electrically conductive polymer compositions and films made therefrom
View Patent ↗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.
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 .