Patent · US Active

Asymmetric end-functionalization of carbon nanotubes

US7488508B2 · kind B2 · utility

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Key dates

Filing dateFeb 16, 2006
Grant dateFeb 10, 2009
Priority date—
Expiry dateMar 16, 2027

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01B2202/08
  • WIPO fieldMicro-structural and nano-technology
  • WIPO sectorChemistry

Abstract

A method of making an asymmetric end-functionalized carbon nanotube film is described. The method includes providing a carbon nanotube film having a first end and a second end; contacting the first end of the carbon nanotube film with a first reactive medium; reacting the first end of the carbon nanotube film with the first reactive medium by a first physicochemical process; contacting the second end of the carbon nanotube film with a second reactive medium, wherein the first reactive medium is different from the second reactive medium; and reacting the second end of the carbon nanotube film with the second reactive medium by a second physicochemical process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.