Rheological and thermal properties of poly(ethylene oxide)/multiwall carbon nanotube composites

T. N. Abraham, Debdatta Ratna, S. Siengchin, J. Karger-Kocsis

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Polyethylene oxide) (PEO) based nanocomposites were prepared by the dispersion of multiwall carbon nanotubes (MWCNTs) in aqueous solution. MWCNTs were added up to 4 wt % of the PEO matrix. The dynamic viscoelastic behavior of the PEO/MWCNT nanocomposites was assessed with a strain-controlled parallel-plate rheometer. Prominent increases in the shear viscosity and storage modulus of the nanocomposites were found with increasing MWCNT content. Dynamic and isothermal differential scanning calorimetry studies indicated a significant decrease in the crystallization temperature as a result of the incorporation of MWCNTs; these composites can find applications as crystallizable switching components for shape-memory polymer systems with adjustable switching temperatures. The solid-state, direct-current conductivity was also enhanced by the incorporation of MWCNTs. The dispersion level of the MWCNTs was investigated with scanning electron microscopy.

Original languageEnglish
Pages (from-to)2094-2101
Number of pages8
JournalJournal of Applied Polymer Science
Volume110
Issue number4
DOIs
Publication statusPublished - Nov 15 2008

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Carbon Nanotubes
Polyethylene oxides
Carbon nanotubes
Thermodynamic properties
Composite materials
Nanocomposites
Shear viscosity
Rheometers
Crystallization
Shape memory effect
Differential scanning calorimetry
Polymers
Elastic moduli
Temperature
Scanning electron microscopy

Keywords

  • Differential scanning calorimetry (DSC)
  • Nanocomposites
  • Rheology

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

Rheological and thermal properties of poly(ethylene oxide)/multiwall carbon nanotube composites. / Abraham, T. N.; Ratna, Debdatta; Siengchin, S.; Karger-Kocsis, J.

In: Journal of Applied Polymer Science, Vol. 110, No. 4, 15.11.2008, p. 2094-2101.

Research output: Contribution to journalArticle

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