Self-doped polymers

• US 5,569,708 A
• Filed: 08/29/1994
• Issued: 10/29/1996
• Est. Priority Date: 03/24/1986
• Status: Expired due to Term

• Current Assignee: Regents of the University of California (University of California)
• Original Assignee: Regents of the University of California (University of California)
• Inventors: Wudl, Fred, Heeger, Alan
• Primary Examiner(s): HENDERSON JR, CHRISTOPHER A
• Application Number:
  US08/297,589
• Time in Patent Office: 792 Days
• Field of Search: 524/600, 524/606, 524/607, 524/608, 524/609, 524/800, 524/845, 524/876
• US Class Current: 524/607
• CPC Class Codes: C08G 61/123 derived from five-membered heterocyclic compounds
• CPC Class Codes: C08G 73/00 Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00 polycarbodiimides prepared from isocyanates C08G18/025, C08G18/797
• CPC Class Codes: C08G 83/00 Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
• CPC Class Codes: G02F 1/1525 characterised by a particular ion transporting layer, e.g. electrolyte
• CPC Class Codes: G02F 1/155 Electrodes
• CPC Class Codes: H01B 1/127 comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
• CPC Class Codes: H01M 4/60 of organic compounds
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A self-doped conducting polymer having along its backbone a π-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

Claims

1. An aqueous solution of the water-soluble self doped zwitterionic polymer comprised of from about 100 to about 500 monomer units, wherein 0.01 to 100% of the monomer units have the structure ##STR12## wherein n is 0 or 1, R₂ is a linear or branched alkyl, ester, ether or amide moiety having between 1 and about 10 carbon atoms, and X is a Bronsted acid anion.

2. The aqueous solution of the zwitterionic polymer of claim 1, wherein n is 1, R₂ is a linear alkylene or ether group and X is CO₂ or SO₃.

3. The aqueous solution wherein in the zwiterionic polymer of claim 1, n is 0.

4. The aqueous solution wherein in the zwitterinoic polymer of claim 3, X is CO₂.

5. The aqueous solution wherein in the zwitterionic polymer of claim 1, R₂ is alkylene.

6. The aqueous solution of claim 1 wherein n is 1.

7. The aqueous solution of claim 6 wherein X is CO₂.

8. The aqueous solution of claim 1 wherein R₂ is alkylene.

9. The aqueous solution of claim 2 wherein R₂ is an ether group.

10. The aqueous solution of claim 9 wherein X is CO₂.

11. The aqueous solution of claim 9 wherein X is SO₃.

12. The aqueous solution of claim 2 wherein R₂ is linear alkylene.

13. The aqueous solution of claim 1 wherein R₂ is linear alkylene, --CH₂ CH₂ --.

14. The aqueous solution of claim 13 wherein X is CO₂.

15. The aqueous solution of claim 13 wherein X is SO₃.

16. The aqueous solution of claim 1 wherein R₂ is linear alkylene, --(CH₂)₄ --.

17. The aqueous solution of claim 15 wherein X is CO₂.

18. The aqueous solution of claim 15 wherein X is SO₃.

19. The aqueous solution of claim 1 wherein n is 0 and X is SO₃.

20. The aqueous solution of claim 1 wherein n is 1, R₂ is --CH₂ CH₂ OCH₂ CH₂ -- and X is CO₂ or SO₃.