Effect of Cutting and Functionalization of Single-Walled Carbon Nanotubes on Their Dispersion Behaviors

Authors: Tan, Soon Huat; Cho, Youngjin; Lee, Wonmok; Lee, Naesung; Hong, Sung Chul

Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 4, April 2011 , pp. 3350-3357(8)

Publisher: American Scientific Publishers

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Abstract:

Cutting of single-walled carbon nanotubes (SWCNTs) and their modification with poly (ethylene glycol) and polystyrene were successfully performed through a treatment of the SWCNTs with piranha solutions and monoamine terminated polymers. The shortening and functionalization of SWCNTs were confirmed through size exclusion chromatography and Raman spectroscopy observations. The shortened SWCNTs exhibited more aggregated morphology than as-prepared SWCNTs in scanning electron microscope and atomic force microscope observations. Cutting and functionalization of SWCNTs with different polymer chains effectively tailored their dispersion behaviors in solvents. Polystyrene composite films exhibited improved transparency employing shortened SWCNTs, suggesting that the size of SWCNTs are critical factors in controlling the transparency of polymer composite films.

Keywords: SINGLE-WALLED CARBON NANOTUBES; SHORTENING; MODIFICATION; DISPERSION; COMPOSITE

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2011.3721

Publication date: 2011-04-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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