Methods and systems of organic semiconducting polymers
US11289653B2 · kind B2 · utility
1Cited by
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5Claims
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Key dates
| Filing date | Aug 26, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Aug 26, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of reacting bis(R1) 5,5′″-dibromo-3″,4′-difluoro-[2,2′:5′,2″:5″,2′″-quaterthiophene]-3,3′″-dicarboxylate and bis(R2) 5,5′″-dibromo-3″,4′-difluoro-[2,2′:5′,2″:5″,2′″-quaterthiophene]-3,3′″-dicarboxylate to form the polymer:In this polymer R1, R2, R3, R4, R5 and R6 are independently selected from the group consisting of: a halogen, a substituted alkyl, an unsubstituted alkyl, a substituted aryl, an unsubstituted aryl, a substituted heteroaryl and an unsubstituted heteroaryl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.