Mixed halogen polymerization
US7838624B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | May 14, 2008 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Jul 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/1135
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Synthesis of regioregular thiophene-based polymers (PTs) and their functionalized counterparts via metal assisted cross-coupling polymerizations utilizing mixed halogen substituted aryl halide monomer precursors. The described method provides a means to control structural homogeneity and regioregularity and the electronic/spectroscopic properties of functionalized PTs, and leads to improved performance of organic semiconductor devices such as OPVs and/or OFETs. Asymmetrical monomers can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.