Mulvey J Justin, Feinberg Evan N, McDevitt Michael R, Scheinberg David A
Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.
Weill Cornell Medical College, 525 E 68th Street, New York, NY 10065, USA.
Crystals (Basel). 2014;4(4):450-465. doi: 10.3390/cryst4040450. Epub 2014 Nov 20.
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 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.
由于功能化单壁碳纳米管（SWCNT）和功能化无定形碳具有多分散性且物理化学性质相似，因此将它们分离具有挑战性。我们描述了一种单步透析分离方法，该方法利用了高度功能化的SWCNT在极性环境中聚集同时保持其溶解性的能力。将功能化SWCNT的实验与功能化C富勒烯（巴基球）进行比较，以探究该方法的普遍适用性，并进一步表征聚集过程。这种方法可同时用于纯化未反应的小分子和残留溶剂（如二甲基甲酰胺）的功能化反应混合物。
