Sulfonated polyaniline compositions, ammonium salts thereof, process for their preparation and uses thereof

• US 5,208,301 A
• Filed: 05/25/1990
• Issued: 05/04/1993
• Est. Priority Date: 05/13/1988
• Status: Expired due to Term

• Current Assignee: The Ohio State University Research Foundation
• Original Assignee: The Ohio State University Research Foundation
• Inventors: Yue, Jiang, Epstein, Arthur J.
• Primary Examiner(s): Kight, III, John
• Assistant Examiner(s): HAMPTON HIGHTOWER, PATRICIA
• Application Number:
  US07/529,023
• Time in Patent Office: 1,075 Days
• Field of Search: 525/540, 525/534, 525/535, 528/210, 528/214, 528/373, 528/391, 528/422, 528/480, 528/491
• US Class Current: 525/540
• CPC Class Codes: C08G 73/0266 Polyanilines or derivatives thereof
• CPC Class Codes: D01F 6/76 from other polycondensation products
• CPC Class Codes: D06M 10/10 Macromolecular compounds
• CPC Class Codes: D06M 15/61 Polyamines polyimines
• CPC Class Codes: G02F 1/0126 Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass
• CPC Class Codes: G02F 1/3611 containing Nitrogen
• CPC Class Codes: G11B 7/244 comprising organic materials only
• CPC Class Codes: G11B 7/245 containing a polymeric component
• CPC Class Codes: H01B 1/128 comprising six-membered aromatic rings in the main chain, e.g. polyanilines, polyphenylenes
• CPC Class Codes: H01M 4/60 of organic compounds
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Sulfonic acid-substituted polyaniline compositions, ammonium salts thereof, and uses therefor are disclosed. The ammonium salts of the sulfonic acid-substituted polyaniline compositions are used as interim materials in the processing of conducting sulfonated polyaniline compositions. The ammonium salts of the sulfonic acid-substituted polyaniline compositions are also used to either reversible or irreversible NH₃ filters, sensors, temperature indicators and the like.

Claims

1. A method for making a self-protonated, conducting sulfonated polyaniline composition of formula I:

##STR8## wherein 0≦

y≦

1, R₁, R₂, R₃, R₄, R₅ and R₆ are independently selected from the group consisting of H, --SO₃ M, --R₇ SO₃ M, --OCH₃, --CH₃, --C₂ H₅, --F, --Cl, --Br, --I, --(NR₇)₂, --NHCOR₇, --OH, --O^-, --SR₇, --OR₇, --OCOR₇, --NO₂, --COOH, --COOR₇, --COR₇, --CHO and --CH, wherein R₇ is a C₁ -C₈ alkyl, aryl or aralkyl group, wherein the fraction of rings containing at least one R₁, R₂, R₃ or R₄ group being an --SO₃ M, or --R₇ SO₃ M wherein M is an unsubstituted or substituted ammonia of the formula NA₁ A₂ A₃ and A₁, A₂ and A₃ are independently selected from the group consisting of H, and C₁ -C₈ straight or branched alkyl, varies from approximately 20 percent to 100 percent;

comprising;

(a) dissolving a sulfonated polyaniline composition in an unsubstituted or substituted ammonium hydroxide to form a solution comprising an unsubstituted or substituted ammonium salt of the sulfonated polyaniline composition;

(b) exposing a substrate to the solution comprising the ammonium salt of the sulfonated polyaniline composition; and

,

(c) converting the ammonium salt of the sulfonated polyaniline composition to the self-protonated conducting sulfonated polyaniline composition by removing water and the unsubstituted or substituted ammonia gas.

2. The method of claim 1 in which the removal of water and the unsubstituted or substituted ammonia is conducted at a temperature in the range of about 20°

C. to about 50°

C.

3. The method of claim 1 in which the removal of water and the unsubstituted or substituted ammonia is conducted at about room temperature.