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    • 2. 发明申请
    • Sidewall functionalization of single-wall carbon nanotubes through C-N bond forming substitutions of fluoronanotubes
    • 通过氟纳托管的C-N键形成取代单壁碳纳米管的侧壁官能化
    • US20060171874A1
    • 2006-08-03
    • US10714187
    • 2003-11-14
    • Valery KhabasheskuJohn MargraveMary MargraveJoel StevensGaelle Derrien
    • Valery KhabasheskuJohn MargraveMary MargraveJoel StevensGaelle Derrien
    • C01B31/02
    • C08J5/005B82Y30/00B82Y40/00C01B32/174C01B2202/02C01B2202/22C01B2202/34C01B2202/36C08J2377/06C08L77/06Y10S977/748Y10S977/847Y10T428/2931
    • The present invention is directed toward a method of sidewall-functionalizing single-walled carbon nanotubes (SWNTs) through C—N bond forming substitution reactions with fluorinated SWNTs (fluoronanotubes), and to the sidewall-functionalized SWNTs comprising C—N bonds between carbons of the SWNT sidewall and nitrogens of the functionalizing groups made by these methods. Furthermore, when diamine species are utilized as reactants, novel materials like crosslinked SWNTs and “nanotube-nylons” can be generated. In some embodiments, SWNTs with functional groups covalently attached to their side walls through C—N bonds are prepared by either the direct interaction of fluoronanotubes with terminal alkylidene diamines or diethanolamine, or by a two-step procedure involving consecutive treatments with Li3N in diglyme and RCl (R═H, n-butyl, benzyl) reagents. Evidence for sidewall attachment of amine-derived groups has been provided by Raman, FTIR, and UV-vis-NIR spectra, SEM/EDAX and TEM data, and thermal degradation studies. The demonstrated new C—N functionalization methods offer a wide range of further SWNT derivatizations, including their covalent binding to aminoacids, DNA, and polymer matrixes.
    • 本发明涉及通过与氟化SWNT(氟尼龙)形成CN键形成取代反应的侧壁官能化单壁碳纳米管(SWNT)的方法,以及包含SWNT侧壁碳原子之间的CN键的侧壁官能化SWNT, 通过这些方法制备的官能团的氮。 此外,当使用二胺物质作为反应物时,可以产生新型材料如交联的单壁碳纳米管和“纳米管 - 尼龙”。 在一些实施方案中,具有通过CN键共价连接到其侧壁的官能团的SWNT通过氟代管与末端亚烷基二胺或二乙醇胺的直接相互作用或通过涉及Li 3连续处理的两步法来制备, (N,丁基,苄基)试剂。 通过拉曼,FTIR和UV-vis-NIR光谱,SEM / EDAX和TEM数据以及热降解研究提供胺衍生基团侧壁附着的证据。 证明的新的C-N官能化方法提供了广泛的进一步的SWNT衍生化,包括它们与氨基酸,DNA和聚合物基质的共价结合。
    • 5. 发明申请
    • Sidewall derivatized carbon nanotubes
    • 侧壁衍生碳纳米管
    • US20070098621A1
    • 2007-05-03
    • US11408520
    • 2006-06-13
    • John MargraveEdward MickelsonRobert HaugePeter BoulChad HuffmanJie LiuRichard Smalley
    • John MargraveEdward MickelsonRobert HaugePeter BoulChad HuffmanJie LiuRichard Smalley
    • D01F9/12
    • B01J21/18B01J23/74B01J23/755B01J35/006B01J35/06B82Y30/00B82Y40/00C01B32/174C01B2202/02C01B2202/06D01F11/121Y10S977/74Y10S977/748Y10S977/75Y10S977/843Y10S977/848
    • This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall 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 single wall carbon nanotubes having substituents attached to the side wall of the nanotube. The substituents will, of course, be dependent on the nucleophile, and preferred nucleophiles include alkyl lithium species such as methyl lithium. Alternatively, fluorine may be fully or partially removed from fluorine derivatized carbon nanotubes by reacting the fluorine derivatized carbon nanotubes with various amounts of hydrazine, substituted hydrazine or alkyl amine. The present invention also provides seed materials for growth of single wall carbon nanotubes comprising a plurality of single wall carbon nanotubes or short tubular molecules having a catalyst precursor moiety covalently bound or physisorbed on the outer surface of the sidewall to provide the optimum metal cluster size under conditions that result in migration of the metal moiety to the tube end.
    • 本发明涉及制备碳纳米管的化学衍生物和衍生纳米管的用途,包括制备阵列作为碳纤维合成的基础。 在一个实施方案中,本发明还提供了通过使单壁碳纳米管与氟气反应并回收氟衍生的碳纳米管,制备具有连接到纳米管侧壁上的取代基的单壁碳纳米管的方法,然后使氟衍生的碳纳米管与 亲核试剂 一些氟取代基被亲核取代取代。 如果需要,可以完全或部分地除去剩余的氟以产生具有连接到纳米管的侧壁上的取代基的单壁碳纳米管。 取代基当然取决于亲核试剂,优选的亲核试剂包括烷基锂物质如甲基锂。 或者,可以通过使氟衍生的碳纳米管与各种量的肼,取代的肼或烷基胺反应,从氟衍生的碳纳米管中完全或部分地除去氟。 本发明还提供用于生长单壁碳纳米管的种子材料,其包含多个单壁碳纳米管或具有在侧壁的外表面上共价结合或物理吸附的催化剂前体部分的短管状分子,以提供最佳金属簇尺寸 导致金属部分迁移到管端的条件。