Indigo-based polymers for use in SWCNTs electronics

US12181431B2 · kind B2 · utility

Inventors

• Chang Guo · Edmonton, CA
• Jianying OUYANG · Ottawa, CA
• Zhao Li · Mississauga, CA
• Jianfu Ding · Ottawa, CA
• Patrick Roland Lucien Malenfant · Ottawa, CA

Key dates

• Filing date: Aug 13, 2019
• Grant date: Dec 31, 2024
• Expiry date: Oct 28, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2261/94
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A compound of Formula (0): where Ar is one or more substituted or unsubstituted aromatic units, R is independently H, F, CN, a C1-C20 linear or branched aliphatic group or a C1-C20 linear or branched aliphatic acyl group, and n is an integer 3 or greater, is useful for sorting and dispersing carbon nanotubes (CNTs) and for producing printed electronic devices (e.g. CO2 sensors, TFTs) in which the CNTs are functionalized with the compound.