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NMR and Raman spectroscopic characterization of single walled carbon nanotube composites of polybutadiene

Published online by Cambridge University Press:  31 January 2011

George D. Bennett ,
Steve G. Greenbaum  and
Frank J. Owens
Steve G. Greenbaum*
Affiliation:
Department of Physics, Hunter College of CUNY, New York, New York 10065
Frank J. Owens
Affiliation:
Department of Physics, Hunter College of CUNY, New York, New York 10065; and Armament Research, Development, and Engineering Center, Picatinny, New Jersey 07806
*
a) Address all correspondence to this author. e-mail: steve.greenbaum@hunter.cuny.edu
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Abstract

Significant shifts of the frequency of the Raman spectra of the tangential mode of single walled carbon nanotubes (SWNTs) and fluorinated tubes (FSWNTs) in composites of polybutadiene (PB) were observed relative to the pristine SWNTs indicative of the interaction between the polymer and the SWNTs. Proton NMR line width measurements demonstrate partial suppression of polymer segmental motion for both types of nanotube composites and spin-lattice relaxation results indicate that short time-scale localized motions are also affected by SWNT inclusion, more so for FSWNTs. Hardness measurements as a function of wt% SWNTs and FSWNTs in the polymer show larger enhancements of hardness in the composite with the fluorinated tubes.

Keywords

HardnessNuclear magnetic resonance (NMR)Raman spectroscopy
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 7 , July 2009 , pp. 2215 - 2220
Copyright
Copyright © Materials Research Society 2009

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