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Molecular Disorder in Prestrained Nanocomposites: Effects of Processing on Durability of Thermally-Active Ethylene-Vinyl Acetate | PyChol | Multiwall Carbon Nanotubes

Winter, A.D. and Jaye, C. and Fischer, D. and Omastova, M. and Campo, E.M. (2015) Molecular Disorder in Prestrained Nanocomposites: Effects of Processing on Durability of Thermally-Active Ethylene-Vinyl Acetate | PyChol | Multiwall Carbon Nanotubes. MRS Proceedings, 1718. pp. 21-26. DOI: 10.1557/opl.2015.473

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Abstract

In situ temperature-resolved Near-edge X-ray Absorption Fine Structure (NEXAFS) measurements were performed on thermo-active ethylene-vinyl acetate (EVA) � multiwall carbon nanotube (MWCNT) composites 12 months following synthesis, and compared with spectra acquired shortly after synthesis to examine aging effects on non-covalent interactions. Room temperature spectra revealed no difference between unstrained and strained composites, suggesting relaxation. Further, energy shifts in �* C=C resonances indicated a change in ��� interactions between MWCNT walls and chemical dispersant, supported also by AFM phase imaging. Temperature-resolved NEXAFS analysis showed a lack of interaction between nanotubes and polymeric chains, suggesting the chemical dispersant unlatched from MWCNT walls. The extent of this effect is finally quantified through a comparative study of spectral trends.

Item Type: Article
Subjects: Research Publications
Departments: College of Physical and Applied Sciences > School of Electronic Engineering
Date Deposited: 02 Jul 2015 02:09
Last Modified: 26 Sep 2015 02:28
ISSN: 1946-4274
URI: http://e.bangor.ac.uk/id/eprint/4705
Identification Number: DOI: 10.1557/opl.2015.473
Publisher: Cambridge University Press
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