| Autor: | Seiji Shinkai, Masahito Sano, Junko Okamura, Ayumi Kamino |
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| Rok vydání: | 2001 |
| Předmět: | |
| Zdroj: | Journal of Inclusion Phenomena and Macrocyclic Chemistry. 41:49-52 |
| ISSN: | 0923-0750 |
| DOI: | 10.1023/a:1014480502669 |
| Popis: | As-grown, string-shaped single-walled carbon nanotubes were transformed into other shapes by applications of organic chemistry. Cutting carbon nanotubes in strong acids affords oxygen-containing groups at both ends of the open tubes. These groups were utilized for ring-closure reactions in very dilute conditions. Atomic force microscopy reveals ring-shaped nanotubes with a mean diameter of 540 nm as products. Also, the end groups were used to react with the surface amine groups of PAMAM dendrimer. It gave star-shaped structures in which straight nanotubes are radiating from dendrimer centers. These experiments clearly demonstrate that covalent chemistry is useful for construction of super-structured carbon nanotubes. |
| Databáze: | OpenAIRE |
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