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

Published online by Cambridge University Press:  18 May 2015

Allen D. Winter
Affiliation:
School of Electronic Engineering, Bangor University, Bangor LL57 1UT, U.K.
Cherno Jaye
Affiliation:
Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, U.S.A.
Daniel Fischer
Affiliation:
Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, U.S.A.
Maria Omastová
Affiliation:
Polymer Institute, Slovak Academy of Sciences, Bratislava 84541, Slovak Republic.
Eva M. Campo
Affiliation:
School of Electronic Engineering, Bangor University, Bangor LL57 1UT, U.K. Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, Texas 78249, U.S.A.
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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 π* C=C resonances indicated a change in π–π 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.

Type
Articles
Copyright
Copyright © Materials Research Society 2015 

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References

Iijima, S., Nature 357, 5658 (1991).CrossRefGoogle Scholar
Baughman, R. H., Zakhidov, A. A. and de Heer, W. A., Science 297 (5582), 787792 (2002).CrossRefGoogle Scholar
Moniruzzaman, M. and Winey, K. I., Macromolecules 39 (16), 5194 (2006).CrossRefGoogle Scholar
Ajayan, P. M., Schadler, L. S., Giannaris, C. and Rubio, A., Advanced Materials 12 (10), 750753 (2000).3.0.CO;2-6>CrossRefGoogle Scholar
Winter, A. D., Larios, E., Alamgir, F. M., Jaye, C., Fischer, D. and Campo, E. M., Langmuir 29 (51), 1582215830 (2013).CrossRefGoogle Scholar
Baskaran, D., Mays, J. W. and Bratcher, M. S., Chemistry of Materials 17 (13), 33893397 (2005).CrossRefGoogle Scholar
Teh, S. L., Linton, D. and Dadmun, M. D., Macromolecules 44 (19), 77377745 (2011).CrossRefGoogle Scholar
Nemec, L., Blum, V., Rinke, P. and Scheffler, M., Physical review letters 111 (6), 065502 (2013).CrossRefGoogle Scholar
Nair, A. K., Qin, Z. and Buehler, M. J., International Journal of Solids and Structures 49 (18), 24182423 (2012).CrossRefGoogle Scholar
Winter, A. D., Larios, E., Alamgir, F. M., Jaye, C., Fischer, D. A., Omastova, M. and Campo, E. M., The Journal of Physical Chemistry C 118 (7), 37333741 (2014).CrossRefGoogle Scholar
Czaniková, K., Krupa, I., Ilčíková, M., Kasák, P., Chorvár, D., Valentin, M., Šlouf, M., Mosnáček, J., Mičušík, M. and Omastová, M., Journal of Nanophotonics 6 (12), 810707810707 (2012).CrossRefGoogle Scholar
Winter, A., Jaye, C., Fischer, D., Omastová, M. and Campo, E., APL Materials 2 (6), 066105 (2014).CrossRefGoogle Scholar
Magonov, S. N. and Reneker, D. H., Annual Review of Materials Science 27 (1), 175222 (1997).CrossRefGoogle Scholar
Schön, P., Bagdi, K., Molnár, K., Markus, P., Pukánszky, B. and Julius Vancso, G., European Polymer Journal 47 (4), 692698 (2011).CrossRefGoogle Scholar
Wong, M., Paramsothy, M., Xu, X. J., Ren, Y., Li, S. and Liao, K., Polymer 44 (25), 77577764 (2003).CrossRefGoogle Scholar
Ahir, S. V., Squires, A. M., Tajbakhsh, A. R. and Terentjev, E. M., Physical Review B 73 (8), 085420 (2006).CrossRefGoogle Scholar