Process for the preparation of continuous bilayer electronically-conductive polymer films

• US 4,933,052 A
• Filed: 10/03/1988
• Issued: 06/12/1990
• Est. Priority Date: 02/27/1987
• Status: Expired due to Fees

• Current Assignee: University of Victoria
• Original Assignee: University of Victoria
• Inventors: Santhanam, Kalathur S. V., O'Brien, Robert N.
• Primary Examiner(s): Niebling, John F.
• Assistant Examiner(s): MARQUIS, STEVEN
• Application Number:
  US07/252,382
• Time in Patent Office: 617 Days
• Field of Search: 204/58.5, 204/59 R, 204/72, 204/78
• US Class Current: 205/108
• CPC Class Codes: B01D 71/72 Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 and B01D71/701 - B01D71/702
• CPC Class Codes: C08G 61/121 derived from organic halides
• CPC Class Codes: H01B 1/127 comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes

Abstract

A process is provided for the preparation of an article having a continuous metal substrate, and a coherent continuous coating thereon of a bilayer electronically-conductive continuous film comprising a continuous film of a polycarbazole on a continuous polypyrrole substrate, said process comprising:

electrodepositing a continuous film of a polycarbazole on a continuous metal anode having a continuous film of a polypyrrole substrate thereon.

Claims

1. A process for the preparation of an article having a continuous metal substrate, and a coherent continuous coating thereon of a bilayer, electronically-conductive, continuous film comprising a continuous film of a polycarbazole on a continuous film of a polypyrrole substrate, said process comprising:

electrodepositing a continuous film of said polycarbazole on a continuous metal anode having a continuous film of said polypyrrole substrate thereon.

2. The process of claim 1 further comprising the step of absorbing a catalyst onto said polycarbazole layer of said continuous film to provide an electronically-conductive, continuous film with catalytic properties.

3. The process of claim 2 wherein said catalyst is iron phthalocyanine.

4. The process of claim 1 wherein said electrodeposition is conducted by galvanostatic electrolysis in an aprotic solvent containing an electrolyte which is soluble in said selected aprotic solvent.

5. The process of claim 4 wherein said continuous metal anode is prepared by galvanostatic electrolysis of pyrrole in an aprotic solvent containing electrolyte which is soluble in said selected aprotic solvent.

6. The process of claim 5 wherein said aprotic solvent is N,N-dimethyl formamide.

7. The process of claim 5 wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

8. The process of claim 5 wherein said aprotic solvent is N,N-dimethyl formamide and wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

9. The process of claim 4 wherein said aprotic solvent is N,N-dimethyl formamide.

10. The process of claim 4 wherein said continuous metal anode is prepared by pulsed electrolysis of pyrrole in an aprotic solvent containing an electrolyte which is soluble in said selected aprotic solvent.

11. The process of claim 10 wherein said aprotic solvent is N,N-dimethyl formamide.

12. The process of claim 10 wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

13. The process of claim 10 wherein said aprotic solvent is N,N-dimethyl formamide and wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

14. The process of claim 4 wherein said aprotic solvent is N,N-dimethyl formamide and wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

15. The process of claim 4 wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

16. The process of claim 4 further comprising the step of absorbing a catalyst onto said polycarbazole layer of said continuous film to provide an electronically conductive, continuous film with catalytic properties.

17. The process of claim 16 wherein said catalyst is iron phthalocyanine.

18. The process of claim 1 wherein said electrodeposition is conducted by pulsed electrolysis in an aprotic solvent containing an electrolyte which is soluble in said selected aprotic solvent.

19. The process of claim 18 wherein said aprotic solvent is N,N-dimethyl formamide.

20. The process of claim 18 further comprising the step of absorbing a catalyst onto said polycarbazole layer of said continuous film to provide an electronically conductive, continuous film with catalytic properties.

21. The process of claim 18 wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

22. The process of claim 18 wherein said continuous metal anode is prepared by galvanostatic electrolysis of pyrrole in an aprotic solvent containing an electrolyte which is soluble in said selected aprotic solvent.

23. The process of claim 22 wherein said aprotic solvent is N,N-dimethyl formamide.

24. The process of claim 22 wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

25. The process of claim 22 wherein said aprotic solvent is N,N-dimethyl formamide and wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

26. The process of claim 18 wherein said continuous metal anode is prepared by pulsed electrolysis of pyrrole in an aprotic solvent containing an electrolyte which is soluble in said selected aprotic solvent.

27. The process of claim 26 wherein said aprotic solvent is N,N-dimethyl formamide.

28. The process of claim 26 wherein said electrolyte is tetra-n-butyl ammonium perchlorate.

29. The process of claim 26 wherein said aprotic solvent is N,N-dimethyl formamide and wherein said electrolyte is tetra-n-butyl ammonium perchlorate.