Conductive polyaniline laminates

• US 5,556,700 A
• Filed: 03/25/1994
• Issued: 09/17/1996
• Est. Priority Date: 03/25/1994
• Status: Expired due to Term

• Current Assignee: Trustees Of The University Of Pennsylvania (University of Pennsylvania)
• Original Assignee: Trustees Of The University Of Pennsylvania (University of Pennsylvania)
• Inventors: Min, Yonggang, Kaneto, Keiichi, MacDiarmid, Alan G.
• Primary Examiner(s): NAKARANI, DHIRAJLAL S
• Application Number:
  US08/218,130
• Time in Patent Office: 907 Days
• Field of Search: 428/411.1, 428/332, 528/422, 525/540, 252/500
• US Class Current: 428/332
• CPC Class Codes: B32B 2250/03 3 layers
• CPC Class Codes: B32B 2250/24 All layers being polymeric
• CPC Class Codes: B32B 2307/202 Conductive
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/28 comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
• CPC Class Codes: B32B 7/025 Electric or magnetic properties
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: C08G 73/0246 Polyamines containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain
• CPC Class Codes: H01B 1/128 comprising six-membered aromatic rings in the main chain, e.g. polyanilines, polyphenylenes
• CPC Class Codes: Y10T 428/26 Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]

Abstract

Laminates containing a layer of conductive polyaniline are provided for various uses such as actuator devices. The laminates are controllably deformable and can operate on an electromechanical, chemomechanical, and mechanoelectrical modes. The laminates are preferably constructed so as to have a first flexible layer of polyaniline and a second flexible layer of polyaniline surmounted thereon. The polyaniline layers are separated by an electronically insulating layer.

Claims

1. A controllably deformable laminate comprising:

(a) a first flexible layer comprising an electronically conductive salt of polyaniline;

(b) a second flexible layer of electronically conductive material, surmounting said first layer, said second layer comprising a polymeric material comprising polyaniline, polypyrrole, or polyacetylene; and

(c) a flexible, electronically insulating and ionically non-conducting layer, interposed between said first and said second electronically conductive polymeric layers.

2. The laminate of claim 1 wherein said second conductive layer comprises an electronically conductive salt of polyaniline.

3. The laminate of claim 2 further comprising control means for applying an electric current to said first and second conductive layers of said laminate.

4. The laminate of claim 2 further comprising current acceptor means for accepting an electric current from said first and second conductive layers of said laminate.

5. The laminate of claim 2 wherein the first flexible layer has a thickness of from about 1 micron to about 200 microns.

6. The laminate of claim 2 wherein the interposed layer is an adhesive material.

7. A controllably deformable laminate comprising:

(a) a first flexible layer comprising an electronically conductive salt of polyaniline;

(b) a second flexible layer of electronically conductive material surmounting said first conductive polymer layer; and

(c) an electronically insulating, ionically conducting, flexible layer, interposed between the first and second electronically conductive layers.

8. The laminate of claim 7 wherein said interposed layer comprises an aqueous electrolyte.

9. The laminate of claim 7 wherein said interposed layer comprises a solid polymer electrolyte.

10. The laminate of claim 9 wherein said solid polymer electrolyte comprises polyethylene oxide.

11. The laminate of claim 7 wherein said second flexible layer comprises an electronically conductive salt of polyaniline.

12. The laminate of claim 11 further comprising control means for applying an electric current to said first and second conductive layers of said laminate.

13. The laminate of claim 11 further comprising current acceptor means for accepting an electric current from said first and second conductive layers of said laminate.

14. The laminate of claim 11 wherein said interposed layer comprises an aqueous electrolyte.

15. The laminate of claim 11 wherein said interposed layer comprises a solid polymer electrolyte.

16. The laminate of claim 11 wherein the first flexible layer has a thickness of from about 1 micron to about 200 microns.

17. The laminate of claim 16 wherein the second flexible layer has a thickness of from about 1 micron to about 200 microns.

18. The laminate of claim 7 wherein the interposed layer is an adhesive material.

19. The laminate of claim 7 wherein the first flexible polyaniline layer has an outer exposed face opposite said interposed layer, further comprising an adhesive, electrically insulating layer surmounted on said outer exposed face of said first flexible layer.

20. The laminate of claim 19 wherein the second flexible layer comprises an electrically conductive salt of polyaniline.

21. The laminate of claim 20 wherein the second flexible layer has an outer exposed face opposite said interposed layer, further comprising an adhesive, electrically insulating layer surmounted on the outer exposed face of said second flexible layer.