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US 11,352,509 B2Granted
Organically soluble conductive polymers
AssigneeThe Boeing Company
InventorPatrick John Kinlen
Life of this patent
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Abstract
Polymerize ethylenedioxythiophene (EDOT) in a polymerization process using dinonylnaphthalenesulfonic acid (DNNSA) as the dopant and Fe(III) p-toluenesulfonate (Fe (III) p-TSA) as the oxidizing agent to produce an organically soluble polyethylenedioxythiophene (PEDOT).
Claims20
A method of producing an electrically conductive polymer that is soluble in an organic solvent, comprising:
- forming a first solution comprising ethylenedioxythiophene (EDOT) monomers and dinonylnapthalenesulfonic acid (DNNSA);
- introducing a transition-metal p-toluenesulfonic acid (p-TSA) with the first solution, wherein a molar ratio of transition-metal p-TSA to EDOT monomers is about 1 or greater, to form a product mixture comprising polyethylenedioxythiophene (PEDOT) doped with a plurality of anions of the DNNSA and p-TSA, wherein a molar ratio of DNNSA anions to p-TSA anions is about 1 or greater;
- washing the product mixture with an aqueous solution;
- retaining an organic phase of the product mixture, the organic phase comprising the PEDOT doped with anions of the DNNSA and the p-TSA;
- and
- isolating the PEDOT doped with anions of the DNNSA and the p-TSA from the organic phase.
3 more elements
Dependencies are inferred from the claim text.