Polythiophenes, block copolymers made therefrom, and methods of forming the same


Ontology type: sgo:Patent     


Patent Info

DATE

2006-08-29T00:00

AUTHORS

Richard D. McCullough , Jinsong Liu , Paul C. Ewbank , Elena E. Sheina

ABSTRACT

The present invention relates to polythiophenes, particularly regioregular head-to-tail poly(3-alkylthiophenes) (HT-PATs), block copolymers made therefrom, and their methods of formation. The present invention provides HT-PATs with well-defined, specific end-groups, functionalization of the defined HT-PATs, and incorporation of end group functionalized HT-PATs into block copolymers with structural polymers. The intrinsically conductive diblock and triblock copolymers, formed from the HT-PATs, have excellent conductivity and low polydispersities that are useful in a number of applications. The block copolymers of the present invention have been found to exhibit conductivities that range from a low of 10−8 S/cm for certain applications to as high as several hundred S/cm or more. More... »

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