International Business Machines Corporation

Peter Joseph Spellane

Marie Angelopoulos

Jane M Shaw

Ravi F Saraf

Liam David Comerford

Niranjan Mohanlal Patel

Steven E Molis

Vincent Albert Bourgault

Michael Wayne Mirre

Ali Afzali Ardakani

Ali Afzali-Ardakani

This invention is concerned with an electrically conductive polymer blend composition which is a liquid compatible blend, comprising a doped product formed form blending a first solution comprising a Lewis base electrically conductive polymer in undoped form in a first organic solvent with a second solution comprising a Lewis acid polymer dopant in a second organic solvent, wherein said Lewis acid polymer dopant dopes said Lewis base electrically conductive polymer in undoped form to obtain said electrically conductive polymer blend, the resulting doped conductive product being soluble in the combination of said first and said second organic solvents and mixable at the molecular level.

Electrically conductive polymeric materials and use thereof

The present invention relates to electrically conductive polymer blend compositions comprising a non-conducting polymeric component and an electrically conducting polymeric component and specific applications to which the blend compositions can be put.

A polymer blend composition, capable of being made electrically conductive by application of heat having an electrically conductive upon doping polymer in undoped form; the undoped polymer is selected from the group consisting of substituted and unsubstituted polyparaphenylenevinylenes, polyanilines, polyazines, polythiophenes, poly-p-phenylene sulfides, polyfuranes, polyselenophenes, polyacetylenes filtered from soluble precursors and combinations and blends thereof, compounded and blended at a molecular scale with a dielectric polymer; wherein the dielectric polymer is selected from the group consisting of interpolymers of acrylonitrile-butadiene-styrene, acetal acrylic liquid crystal polymers, polybutylene terephthalate, polycarbonate, polyester, polyetherimide, polyethersulfone, polyethylene, polyethylene terephthalate, polyphenylene oxide, polyphenylene sulfide, polypropylene, polystyrene, polyurethane, polyvinychloride, styrene-acrylonitrile copolymer, fluoropolymers, nylon polyesters, and thermoplastic elastomers, and a thermally deblockable dopant selected from the group consisting of triflates, tosylates and borates, the electrically conductive upon doping polymer having enhanced solubility in undoped form with said dielectric polymer to form a compatible molecularly mixed blend in solution; doping of the polymer occurs only after exposure to heat.

Growing community of inventors

Greenwich, CT, United States of America

Peter Joseph Spellane