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Dialytic Separation of Bundled, Functionalized Carbon Nanotubes from Carbonaceous Impurities.

ABSTRACT: Separating functionalized single-wall carbon nanotubes (SWCNTs) from functionalized amorphous carbon is challenging, due to their polydispersity and similar physicochemical properties. We describe a single-step, dialytic separation method that takes advantage of the ability of heavily functionalized SWCNTs to bundle in a polar environment while maintaining their solubility. Experiments on functionalized SWCNTs were compared with functionalized, C₆₀ fullerenes (buckyballs) to probe the general applicability of the method and further characterize the bundling process. This approach may simultaneously be used to purify a functionalization reaction mixture of unreacted small molecules and of residual solvents, such as dimethylformamide.

SUBMITTER: Mulvey JJ

PROVIDER: S-EPMC8112586 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Dialytic Separation of Bundled, Functionalized Carbon Nanotubes from Carbonaceous Impurities.

Mulvey J Justin JJ Feinberg Evan N EN McDevitt Michael R MR Scheinberg David A DA

Crystals 20141120 4

Separating functionalized single-wall carbon nanotubes (SWCNTs) from functionalized amorphous carbon is challenging, due to their polydispersity and similar physicochemical properties. We describe a single-step, dialytic separation method that takes advantage of the ability of heavily functionalized SWCNTs to bundle in a polar environment while maintaining their solubility. Experiments on functionalized SWCNTs were compared with functionalized, C<sub>60</sub> fullerenes (buckyballs) to probe the ...[more]

PMID: 33981452

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