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US 11,584,826 B2Granted
Modulating fabric diffusivity using tether-containing conducting polymers
AssigneeThe Government of the United States of America, as represented by the Secretary of the Navy
InventorsBrett D. Martin, Jawad Naciri, Banahalli R. Ratna
Life of this patent
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Abstract
An interpenetrating network (IPN) polymer membrane material includes a soft polyurethane interspersed with a crosslinked conducting polymer. The material can be reversibly “switched” between its oxidized and reduced states by the application of a small voltage, ˜1 to 4 volts, thus modulating its diffusivity.
Claims1
A method of modulating the diffusivity of a material, the method comprising:
- reducing the material to decrease its diffusivity and oxidizing the material to increase its diffusivity,
- wherein the material comprises a fabric comprising a conductive polymer comprising poly(3-{2-[2-(2-{2-[(thiophene-3-carbonyl)-amino]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-propane-1-sulfonic acid)-co-5,5 bis-3,4 ethylenedioxythiophene-co-hydroxymethyl-3,4 ethylenedioxythiophene.
Dependencies are inferred from the claim text.