Nano Archive

PEGylation of double-walled carbon nanotubes for increasing their solubility in water

Nie, Haiyu and Guo, Wei and Yuan, Yuan and Dou, Zengpei and Shi, Zujin and Liu, Zhen and Wang, Haifang and Liu, Yuanfang (2010) PEGylation of double-walled carbon nanotubes for increasing their solubility in water. Nano Research, 3 (2). pp. 103-109.

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Abstract

Polyethylene glycol (PEG) functionalized double-walled carbon nanotubes (DWNTs) have been synthesized by a [2 + 1] cycloaddition reaction and characterized by transmission electron microscopy, atomic force microscopy, Raman spectroscopy, thermal gravimetric analysis, and UV-visible spectroscopy. Functionalization affords a large increase in the aqueous solubility of DWNTs. The saturated concentrations of DWNTs functionalized with diazido-terminated PEG800 (with a molecular weight of 800) and azido-terminated PEG750 monomethylether (with a molecular weight of 750) are very similar—0.36 and 0.37 mg/mL (DWNTs equivalent concentration), respectively.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:8228
Deposited By:JNCASR
Deposited On:10 Feb 2010 09:11
Last Modified:17 Feb 2010 04:34

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