Patent ID: 6187823
Filing Date: 2001-02-13
Classification: B82Y,C01B,C01P,C09C,H01L,Y10S

Abstract:
A method of solubilizing single-walled carbon nanotubes in an organic solvent, comprising:purifying said single-walled carbon nanotubes;terminating purified single-walled carbon nanotubes with carboxylic acid groups;shortening the single-walled carbon nanotubes terminated with carboxylic acid groups;polishing the resulting single-walled carbon nanotubes;reacting said carboxylic acid groups on said open ends of said single-walled carbon nanotubes directly with an amine or alkylaryl amine having a formula (1) RNH.sub.2, or (2) R.sub.1 R.sub.2 NH wherein R, R.sub.1 and R.sub.2 =CH.sub.3 (CH.sub.2).sub.n where n=9-50 or R, R.sub.1 and R.sub.2 =C.sub.6 H.sub.4 (CH.sub.2).sub.n CH.sub.3 where n=5-50; anddissolving said reacted single-walled carbon nanotubes in said organic solvent.