Noncovalent functionalization of nanotubes

• US 7,220,818 B2
• Filed: 08/16/2004
• Issued: 05/22/2007
• Est. Priority Date: 08/20/2003
• Status: Expired due to Fees

• Current Assignee: Regents of the University of California (University of California)
• Original Assignee: Regents of the University of California (University of California)
• Inventors: Liu, Yi, Star, Alexander, Ridvan, Ludek, Stoddart, J. Fraser
• Primary Examiner(s): Truong; Duc
• Application Number:
  US10/919,659
• Publication Number:
  US 20050043503A1
• Time in Patent Office: 1,009 Days
• Field of Search: 528/377, 528/86, 429/212, 429/213, 429/209
• US Class Current: 528/377
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: C08G 61/02 Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
• CPC Class Codes: C08G 61/10 only aromatic carbon atoms, e.g. polyphenylenes

Abstract

Nanotubes are treated with poly{(5-alkoxy-m-phenylenevinylene)-co-[(2,5-dioctyloxy-p-phenylene)vinylene]} (PAmPV) polymers and derivatives thereof to provide noncovalent functionalization of the nanotubes which increases solubility and enhances other properties.

Claims

1. A composition of matter comprising a polymer having the formula:

2. A composition of matter according to claim 1, wherein both R₁ and R₂ are alkoxy groups that each contain 8 carbon atoms and wherein R₃ is CH.

3. A composition of matter according to claim 1, wherein y is from 0 to 6 and FG is selected from the group consisting of H, N₃, OH, NHBoc, OMe, Br, SAc,

4. A composition of matter according to claim 2, wherein y is from 0 to 6 and FG is selected from the group consisting of H, N₃, OH, NHBoc, OMe, Br, SAc,

5. A composition of matter according to claim 3 wherein R₄ is OH, O(CH₂)₆N₃, O(CH₂)₂OH, O(CH₂)₆OH, O(CH₂)₆NHBoc, OCH₂OMe, O(CH₂)₂Br, O(CH₂)₆Br, O(CH₂)₆SAc,

6. A composition of matter according to claim 4, wherein R₄ is OH, O(CH₂)₆N₃, O(CH₂)₂OH, O(CH₂)₆OH, O(CH₂)₆NHBoc, OCH₂OMe, O(CH₂)₂Br, O(CH₂)₆Br, O(CH₂)₆Sac

7. A method of making a functionalized nanotube, said method comprising the steps of:

providing a polymer having the formula;

8. A method according to claim 7 wherein both R₁ and R₂ are alkoxy groups that each contain 8 carbon atoms and wherein R₃ is CH.

9. A method according to claim 7 wherein y is from 0 to 6 and FG is selected from the group consisting of H, N₃, OH, NHBoc, OMe, Br, SAc,

10. A method according to claim 8 wherein y is from 0 to 6 and FG is selected from the group consisting of H, N₃, OH, NHBoc, OMe, Br, SAc,

11. A method according to claim 9 wherein R₄ is OH, O(CH₂)₆N₃, O(CH₂)₂OH, O(CH₂)₆OH, O(CH₂)₆NHBoc, OCH₂OMe, O(CH₂)₂Br, O(CH₂)₆Br, O(CH₂)₆SAc,

12. A method according to claim 10 wherein R₄ is OH, O(CH₂)₆N₃, O(CH₂)₂OH, O(CH₂)₆OH, O(CH₂)₆NHBoc, OCH₂OMe, O(CH₂)₂Br, O(CH₂)₆Br, O(CH₂)₆SAc,

13. A method according to claim 7 which includes the additional step of combining said functionalized nanotube with a solvent for said nanotube.

14. A method according to claim 8 which includes the additional step of combining said functionalized nanotube with a solvent for said nanotube.