Conjugated azopolymers made from aromatic azides and methods for making same
US11692064B2 · kind B2 · utility
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Key dates
| Filing date | Jan 19, 2022 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Jan 19, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A conjugated azopolymer and methods for making same. The azopolymer includes a plurality of monomer units containing isoindigo with R1 and R2 substituent groups, wherein R1 can be one or more C1 to 30 hydrocarbons; and R2 can be H or F. The azopolymer can have a number average molecular weight (Mn) of 4 to 20 kDa; a weight average molecular weight (Mw) of 12 to 50 kDa; and a poly dispersity index (PDI) of 2 to 3. The polymer can further have selected maximal wavelengths (λmax) of 481 to 709 nm and electrochemical reduction events of −0.4 to −1.0 V against an Ag/AgCl reference electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.