Non-aqueous dispersions comprising electrically doped conductive polymers and colloid-forming polymeric acids
AssigneeE.I. du Pont de Nemours and Company
InventorsChe-Hsiung Hsu, Ralph Birchard Lloyd
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Abstract
Compositions, and methods of making, are provided comprising non-aqueous dispersions of at least one doped conductive polymer and at least one colloid-forming polymeric acid, wherein the conductive polymer is selected from a polythiophene, a polypyrrole, a polyaniline, and combinations thereof. Electronic devices and other applications having at least one layer made from at least one such compositions are further provided.
Claims21
A composition comprising a non-aqueous dispersion having less than 40% by weight water, said dispersion comprising at least one conductive polymer doped with at least one anion selected from the group consisting of organic anions and organic acid anions, and at least one colloid-forming polymeric acid, wherein the conductive polymer is selected from a polythiophene, a polypyrrole, a polyaniline, and combinations thereof, and wherein said colloid-forming polymer acid comprises a fluorinated polymeric sulfonic acid.
A method for making a non-aqueous dispersion of a conductive polymer comprising a step selected from one of the following:
- (a) dispersing conductive polymer solids doped with at least one anion selected from the group consisting of organic anions and organic acid anions, in a non-aqueous dispersion of colloid-forming polymeric acid;
- (b) dispersing colloid-forming polymeric acid solids in a non-aqueous dispersion of conductive polymer doped with at least one anion selected from the group consisting of organic anions and organic acid anions;
- and
- (c) combining a non-aqueous dispersion of conductive polymer doped with at least one anion selected from the group consisting of organic anions and organic acid anions, with a non-aqueous dispersion of colloid-forming polymeric acid;
- wherein said non-aqueous dispersion of a doped conductive polymer comprises less than 40% by weight water, and wherein said colloid-forming polymer acid comprises a fluorinated polymeric sulfonic acid.
A method for making a non-aqueous dispersion of a conductive polymer comprising less than 40% by weight water, the method comprising:
- combining a non-aqueous dispersion of doped conductive polymer with a non-aqueous dispersion of colloid-forming polymeric acid, wherein said colloid-forming polymer acid comprises a fluorinated polymeric sulfonic acid.
Dependencies are inferred from the claim text.