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AssigneeWilliam Marsh Rice University
InventorsJohn L. Margrave, Edward T. Mickelson, Robert Hauge, Peter Boul, Chad Huffman, Jie Liu, Richard E. Smalley, Ken Smith, Daniel T. Colbert
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This invention is directed to chemical derivatives of carbon nanotubes wherein the carbon nanotubes have a diameter up to 3 nm. In one embodiment, this invention also provides a method for preparing carbon nanotubes having substituents attached to the side wall of the nanotube by reacting single-wall carbon nanotubes with fluorine gas and recovering fluorine derivatized carbon nanotubes, then reacting fluorine derivatized carbon nanotubes with a nucleophile. Some of the fluorine substituents are replaced by nucleophilic substitution. If desired, the remaining fluorine can be completely or partially eliminated to produce carbon nanotubes having substituents attached to the side wall of the nanotube. The substituents are dependent on the nucleophile, and preferred nucleophiles include alkyl lithium species such as methyl lithium.
A carbon nanotube having one or more substituents covalently bonded to a sidewall of the carbon nanotube, wherein the carbon nanotube has a diameter up to 3 nm, wherein the substituents arc selected from the group consisting of alkyl, acyl, aryl, aralkyl, halogen, substituted thiol, unsubstituted thiol, substituted amino, unsubstituted amino, hydroxy, and OR′, wherein R′ is selected from the group consisting of hydrogen, alkyl, acyl, aryl, aralkyl, halogen, substituted thiol, unsubstituted thiol, substituted amino, unsubstituted amino, a linear carbon chain, and a cyclic carbon chain, and wherein the substituents are bonded to carbon atoms at defect-free sites on the sidewall of the carbon nanotube.
A product made by the process of covalently bonding one or more substituents to a sidewall of a carbon nanotube, wherein the carbon nanotube has a diameter up to 3 nm, wherein the substituents are selected from the group consisting of alkyl, acyl, aryl, aralkyl, halogen, substituted thiol, unsubstituted thiol, substituted amino, unsubstituted amino, hydroxy, and OR′, wherein R′ is selected from the group consisting of hydrogen, alkyl, acyl, aryl, aralkyl, halogen, substituted thiol, unsubstituted thiol, substituted amino, unsubstituted amino, a linear carbon chain, and a cyclic carbon chain, and wherein the substituents are bonded to carbon atoms at detect-free sites on the sidewall of the carbon nanotube.
A product made by the process comprising derivatizing carbon nanotubes by reacting carbon nanotubes with a compound containing a substituent to covalently bond the substituents to a sidewall of the carbon nanotubes, wherein substantially all of the carbon nanotubes have diameters up to 3 nm, wherein the substituents are selected from the group consisting of alkyl, acyl, aryl, aralkyl, halogen, substituted thiol, unsubstituted thiol, substituted amino, unsubstituted amino, hydroxy, and OR′, wherein R′ is selected from the group consisting of hydrogen, alkyl, acyl, aryl, aralkyl, halogen, substituted thiol, unsubstituted thiol, substituted amino, unsubstituted amino, a linear carbon chain, and a cyclic carbon chain, and wherein the substituents are bonded to carbon atoms at defect-free sites on the sidewall of the carbon nanotube.
A product made by the process comprising:
A product made by the process comprising:
Dependencies are inferred from the claim text.