Phillips 66 Company

California Institute of Technology

Solarmer Energy, Inc.

Christopher Scot Daeffler

Ting He

Kathy Woody

Yue Wu

Hui Huang

Amit Palkar

Chenjun Shi

Wei Wang

Joe Bullock

Jun Yang

Janice Hawkins

Robert H Grubbs

Raymond Weitekamp

Garret M Miyake

Victoria Piunova

Yan Xia

Benjamin R Sveinbjornsson

Harry A Atwater

Thomas P Russell

Sung Woo Hong

Ruby Chen

Weiyin Gu

The invention provides a class of wedge-type block copolymers having a plurality of chemically different blocks, at least a portion of which incorporates a wedge group-containing block providing useful properties. For example, use of one or more wedge group-containing blocks in some block copolymers of the invention significantly inhibits chain entanglement and, thus, the present block copolymers materials provide a class of polymer materials capable of efficient molecular self-assembly to generate a range of structures, such as periodic nanostructures and microstructures. Materials of the present invention include copolymers having one or more wedge group-containing blocks, and optionally for some applications copolymers also incorporating one or more polymer side group-containing blocks. The present invention also provides useful methods of making and using wedge-type block copolymers.

Periodic nanostructures from self assembled wedge-type block-copolymers

A polymer having a monomer repeat unit comprising wherein Ar is an aryl group.

Difluorothienothiophene based conjugated polymers

A polymer having two different sets of repeat units consisting essentially of: In this polymer, R1, R2, R3 and R4 can be independently selected from the group consisting of alkyl group, alkoxy group, aryl groups and combinations thereof. Also the combination of R1, R2, R3 and R4 are not all identical and n and o are greater than 1.

Composition and applications of a multi-component benzo[1,2-B:4,5-B] dithiophene-difluorothienothiophene randomly substituted polymers for organic solar cells

A process of dissolving 3-fluoro-4,6-dihydrothieno[3,4-b]thiophene in a solvent to create a solution. An initiator is then added to the solution to produce an initiated solution followed by adding a fluorinated chemical to the initiated solution to produce 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene. 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene is then oxidized with an oxidant to produce 2,3-difluorothieno[3,4-b]thiophene. A brominating step then occurs to the 2,3-difluorothieno[3,4-b]thiophene to produce 4,6-dibromo-2,3-difluorothieno[2,3-c]thiophene 4,6-dibromo-2,3-difluorothieno[2,3-c]thiophene is then debrominated and polymerized to The stoichiometric ratio of (f+g)&#x2248;h and f, g and h are not equal to 0. Additionally, in this embodiment R1, R2, R3 and R4 are independently selected from the group consisting of alkyl group, alkoxy group, aryl groups and combinations thereof and where the combination of R1, R2, R3 and R4 are not all identical.

Process of producing and applications of a multi-component benzo[1,2-B:4,5-B] difluorothienothiophene randomly substituted polymers for organic solar cells

The invention provides a class of copolymers having useful properties, including brush block copolymers, wedge-type block copolymers and hybrid wedge and polymer block copolymers. In an embodiment, for example, block copolymers of the invention incorporate chemically different blocks comprising polymer size chain groups and/or wedge groups that significantly inhibit chain entanglement, thereby enhancing molecular self-assembly processes for generating a range of supramolecular structures, such as periodic nanostructures and microstructures. The present invention also provides useful methods of making and using copolymers, including block copolymers.

Rapid self-assembly of block copolymers to photonic crystals

A method of producing a monomer wherein the method begins by dissolving 3-fluoro-4,6 dihydrothieno[3,4-b]thiophene in a solvent to create a solution. An initiator is then added to the solution to produce an initiated solution. This is followed by adding a fluorinated chemical to the initiated solution to produce 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene. 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene is then oxidized with an oxidant to produce 2,3-difluorothieno[3,4-b]thiophene. 2,3-difluorothieno[3,4-b]thiophene is then bromoated to produce 4,6-dibromo-2,3-difluorothieno[2,3-c]thiophene. The final step involves debrominating 4,6-dibromo-2,3-difluorothieno[2,3-c]thiophene and adding an aryl group to produce the monomer 

Process of making difluorothienothiophene based conjugated polymers

Compositions, synthesis and applications for benzene, furan, thiophene, selenophene, pyrole, pyran, pyridine, oxazole, thiazole and imidazole derivatized anthra[2,3-b:6,7-b']dithiophene (ADT) based polymers, namely, poly{5,11-bis(5-(2-ethylhexyl)thiophen-2-yl)anthra[2,3-b:6,7-b&#x2032;]dithiophene-2,8-diyl-alt-2-ethyl-1-(thieno[3,4-b]thiophen-2-yl)hexan-1-one-4,6-diyl}, poly{5,11-bis(5-(2-ethylhexyl)furan-2-yl)anthra[2,3-b:6,7-b&#x2032;]dithiophene-2,8-diyl-alt-2-ethyl-1-(thieno[3,4-b]thiophen-2-yl)hexan-1-one-4,6-diyl and poly{5,11-bis(5-(2-ethylhexyl)selenophen-2-yl)anthra[2,3-b:6,7-b&#x2032;]dithiophene-2,8-diyl-alt-2-ethyl-1-(thieno[3,4-b]thiophen-2-yl)hexan-1-one-4,6-diyl} are disclosed. Further, an organic solar cell constructed of a derivatized anthra[2,3-b:6,7-b&#x2032;]dithiophene (ADT) based polymer is discussed.

Anthradithiophene-based semiconducting polymers and methods thereof

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Pasadena, CA, United States of America

Christopher Scot Daeffler