Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2007-12-04
2007-12-04
Sellers, Robert (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S577000, C524S582000, C524S586000, C524S612000, C977S788000
Reexamination Certificate
active
10632284
ABSTRACT:
The present invention incorporates new processes for blending derivatized carbon nanotubes into polymer matrices to create new polymer/composite materials. When modified with suitable chemical groups using diazonium chemistry, the nanotubes can be made chemically compatible with a polymer matrix, allowing transfer of the properties of the nanotubes (such as mechanical strength) to the properties of the composite material as a whole. To achieve this, the derivatized (modified) carbon nanotubes are physically blended with the polymeric material, and/or, if desired, allowed to react at ambient or elevated temperature. These methods can be utilized to append functionalities to the nanotubes that will further covalently bond to the host polymer matrix, or directly between two tubes themselves. Furthermore, the nanotubes can be used as a generator of polymer growth, wherein the nanotubes are derivatized with a functional group that is an active part of a polymerization process, which would also result in a composite material in which the carbon nanotubes are chemically involved.
REFERENCES:
patent: 5547748 (1996-08-01), Ruoff et al.
patent: 7105596 (2006-09-01), Smalley et al.
patent: 2003/0089893 (2003-05-01), Niu et al.
patent: 2006/0047052 (2006-03-01), Barrera et al.
patent: 2006/0249711 (2006-11-01), Niu et al.
Bahr et al., “Functionalization of Carbon Nanotubes by Electrochemical Reduction of Aryl Diazonium Salts: A Bucky Paper Electrode,” Journal of the American Chemical Society, vol. 123, No. 27, Feb. 20, 2001, pp. 6536-6542.
Aihara, “Lack of Superaromaticity in Carbon Nanotubes,”Journal of Physics Chem., vol. 98, pp. 9773-9776 (1994).
Allongue et al., “Covalent Modification of Carbon Surfaces by Aryl Radicals Generated from the Electrochemical Reduction of Diazonium Salts,”J. Am. Chem. Soc., vol. 119, pp. 201-207 (1997).
Chen et al., “Solution Properties of Single-Walled Carbon Nanotubes,”Science, vol. 282, pp. 95-98 (Oct. 2, 1998).
Chen et al., “Room-temperature negative differential resistance in nanoscale molecular junctions,”Applied Physics Letters, vol. 77, No. 8, pp. 1224-1226 (Aug. 21, 2000).
Chen et al., “Chemical attachment of organic functional groups to single-walled carbon nanotube material,”Journal of Materials Research, vol. 13, No. 9, pp. 2423-2431 (Sep. 1998).
Cui et al., “Functional Nanoscale Electronic Devices Assembled Using Silicon Nanowire Building Blocks,”Science, vol. 291, pp. 851-853 (Feb. 2, 2001).
Delamar et al., “Modification of Carbon Fiber Surfaces by Electrochemical Reduction of Aryl Diazonium Salts: Application to Carbon Epoxy Composites,”Carbon, vol. 35, No. 6, pp. 801-807 (1997).
Delamar et al., “Covalent Modification of Carbon Surfaces by Grafting of Functionalized Aryl Radicals Produced from Electrochemical Reduction of Diazonium Salts,”J. Am. Chem. Soc., vol. 114, pp. 5883-5884 (1992).
Ebbesen et al., “Carbon Nanotubes,”Annual Review of Materials Science, vol. 24, pp. 235-264 (1994).
Ebbesen et al., “Large-Scale Synthesis of Carbon Nanotubes,”Nature, vol. 358, pp. 220 (Jul. 16, 1992).
Fuhrer et al., “Crossed Nanotube Junctions,”Science, vol. 288, pp. 494-497 (Apr. 21, 2000).
Huang et al., “Directed Assembly of One-Dimensional Nanostructures into Funtional Networks,”Science, vol. 291, pp. 630-633, (Jan. 26, 2001).
Iijima et al., “Helical microtubules of graphite carbon,”Nature, vol. 354, pp. 56-58 (Nov. 7, 1991).
Jost et al., “Diameter grouping in bulk samples of single-walled carbon nanotubes from optical absorption spectroscopy,”Applied Physics Letters, vol. 75, No. 15, pp. 2217-2219 (Oct. 11, 1999).
Kosynkin et al., “Phenylene Ethynylene Diazonium Salts as Potential Self-Assembling Molecular Devices,”Organic Letters, vol. 3, No. 7, pp. 1993-1995 (2001).
Li et al., “Temperature dependence of the Raman spectra of single-wall carbon nanotubes,”Applied Physics Letters, vol. 76, No. 15, pp. 2053-2055 (Apr. 10, 2000).
Liang et al., “Electronic Structures and Optical Properties of Open and Capped Carbon Nanotubes,”J. Am. Chem. Soc., vol. 122, pp. 11129-11137 (2000).
Liu et al., “Fullerene Pipes,”Science, vol. 280, pp. 1253-1256 (May 22, 1998).
Nikolaev et al., “Gas-phase catalytic growth of single-walled carbon nanotubes from carbon monoxide,”Chemical Physics Letters, vol. 313, pp. 91-97 (Nov. 5, 1999).
Obushak et al., “Arennediazonium Tetrachlorocuprates (II). Modification of the Meerwein and Sandmeyer Reactions,”Tetrahedron Letters, vol. 39, pp. 9567-9570 (1998).
Ortiz et al., “Electrochemical modification of a carbon electrode using aromatic diazomium salts. 2. Electrochemistry of 4-nitrophenyl modified glassy carbon electrodes in aqueous media,”Journal Electroanalytical Chemistry, vol. 455, pp. 75-81 (1998).
Rao et al., “Functionalised carbon nanotubes from solutions,”Chem. Commun., pp. 1525-1526 (1996).
Rao et al., “Diameter-Selective Raman Scattering from Vibrational Modes in Carbon Nanotubes,”Science, vol. 275, pp. 187-191 (Jan. 10, 1997).
Richter et al., “Theory of Size-Dependent Resonance Raman Scattering from Carbon Nanotubes,”Physical Review Letters, vol. 79, No. 14, pp. 2738-2740 (Oct. 6, 1997).
Saby et al., “Electrochemical Modification of Glassy Carbon Electrode Using Aromatic Diazonium Salts. 1. Blocking Effect of 4-Nitrophenyl and 4-Carboxyphenyl Groups,”Langmuir, vol. 13, pp. 6805-6813 (1997).
Wong et al., “Covalently functionalized nanotubes as nanometre-sized probes in chemistry and biology,”Nature, vol. 394, pp. 55-58 (1998).
Wu et al., “Finite size effects in carbon nanotubes,”Applied Physics Letters, vol. 77, No. 16, pp. 2554-2556 (Oct. 16, 2000).
Bahr Jeffrey L.
Tour James M.
Yang Jiping
Sellers Robert
Shaddox Robert C.
William Marsh Rice University
Winstead PC
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