Methods for removing polymer coatings from single-walled carbon nanotubes

US9327979B1 · kind B1 · utility

Assignee

• Wisconsin Alumni Research Foundation · US

Inventors

• Padma Gopalan · Madison, US
• Michael Scott Arnold · Middleton, US
• Yongho Joo · Madison, US
• Gerald Joseph Brady · Madison, US
• Matthew John Shea · Madison, US

Key dates

• Filing date: Jan 2, 2015
• Grant date: May 3, 2016
• Expiry date: Jan 2, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/847
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Methods for removing polymer coatings from the surfaces of single-walled carbon nanotubes are provided. The methods remove polymer coatings that are used to selectively wrap and sort semiconducting single-walled carbon nanotubes from metallic single-walled carbon nanotubes. The methods are based on a process of detaching a polymer coatings by binding transition metal complexes to bi-pyridine repeat units within the polymer backbone.