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Proceedings Paper

Polymer-carbon nanotube composites: electrospinning, alignment and interactions
Author(s): A. Douglas Winter; Eduardo Larios; Faisal M. Alamgir; Cherno Jaye; Daniel A. Fischer; Eva M Campo
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Paper Abstract

The possibility of novel nanocomposite materials with dramatically improved properties requires fundamental studies of interactions. Full elucidation of these concepts will allow the tailoring of such systems for particular applications. Using near-edge X-ray absorption fine structure spectroscopy, we investigated interactions in electrospun poly(dimethylsiloxane)-poly(methyl methacrylate)-multiwall carbon nanotube composites. This paper describes these interactions through a building-block model, addresses their dependence upon filler size, and discusses electrospinning as an alignment solution. Though alignment of filler and polymeric chains was not observed spectrally, SEM imaging confirmed uniaxial carbon nanotube alignment in composite fibres. Spectra acquired at different incidence angles revealed differences in energy and intensity of resonances, suggesting conformational configurations. These differences were more significant in composites with larger nanofiller. This supported proposed models of CH-π interactions and hydrogen bonding as adhesion mechanisms.

Paper Details

Date Published: 15 September 2014
PDF: 7 pages
Proc. SPIE 9170, Nanoengineering: Fabrication, Properties, Optics, and Devices XI, 91700H (15 September 2014); doi: 10.1117/12.2064905
Show Author Affiliations
A. Douglas Winter, Bangor Univ. (United Kingdom)
Eduardo Larios, Univ. of Texas at San Antonio (United States)
Faisal M. Alamgir, Georgia Institute of Technology (United States)
Cherno Jaye, National Institute of Standards and Technology (United States)
Daniel A. Fischer, National Institute of Standards and Technology (United States)
Eva M Campo, Bangor Univ. (United Kingdom)
Univ. of Texas at San Antonio (United States)

Published in SPIE Proceedings Vol. 9170:
Nanoengineering: Fabrication, Properties, Optics, and Devices XI
Eva M. Campo; Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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