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Thin-film synthesis and microstructure characterization of the poly(vinyl alcohol) matrix with functionalized carbon nanotubes

Published online by Cambridge University Press:  31 January 2011

Xiaoling He ,
Song Xu ,
Andrey V. Sklyarov  and
Steven Hardcastle
Xiaoling He*
Affiliation:
University of Wisconsin, Milwaukee, Wisconsin 53201
Song Xu
Affiliation:
Agilent Technologies AFM, Tempe, Arizona 85282
Andrey V. Sklyarov
Affiliation:
University of Wisconsin, Milwaukee, Wisconsin 53201
Steven Hardcastle
Affiliation:
University of Wisconsin, Milwaukee, Wisconsin 53201
*
a)Address all correspondence to this author. e-mail: xiaoling@uwm.edu
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Abstract

We report on the synthesis and surface characterization of thin-film nanocomposites using functionalized single-walled carbon nanotubes (CNTs) with a diamine-terminated oligomeric poly(ethylene glycol) [poly(ethylene glycol) bis (3-aminopropyl)-terminated 1500]. The functionalized CNT samples are soluble in highly polar solvents. Their common solubility allows for the intimate mixing of the functionalized nanotubes with the matrix polymer–poly(vinyl alcohol) by dip coating and wet casting to form nanocomposite thin films. We demonstrate the alignment of the CNT bundles in the thin films that are formed without the external field forces. We present our results and discuss alignment reorientations from the characterizations of the nanocomposite thin films by using a Raman spectrometer, scanning electron microscopy, and atomic force microscopy.

Keywords

Chemical synthesisMorphologyNanostructure
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 7 , July 2007 , pp. 1872 - 1878
Copyright
Copyright © Materials Research Society 2007

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References

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