Novel method for dispersion of multiwall carbon nanotubes in poly(ethylene oxide) matrix using dicarboxylic acid salts

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

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

A simple and novel aqueous method was elaborated to disperse multiwall carbon nanotubes (MWCNT) in a poly(ethylene oxide) (PEO) matrix using the sodium salts of suberic acid (half and fully neutralized versions, HNSA and FNSA, respectively) as the modifiers. The incorporation of HNSA significantly improved the dispersion of MWCNT in PEO as reflected in a significant increase in melt viscosity and storage modulus in rheological measurements and dynamic mechanical thermal analysis, respectively. FNSA was proved to be the less efficient in this respect. This was explained in terms of cation-II (between FNSA, HNSA, and electron cloud of the CNT) and H-bonding interactions (between HNSA and PEO) in accordance with Fourier transform infrared spectroscopic results. The dielectric and crystallization behaviors of the PEO/MWCNT/salt systems were studied and discussed, as well. The advantage of this method, applicable for water soluble polymers, is that it does not fully destroy the n electron cloud of CNT opposed to chemical functionalization techniques.

Original languageEnglish
Pages (from-to)1156-1165
Number of pages10
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume47
Issue number12
DOIs
Publication statusPublished - Jun 15 2009

Fingerprint

Dicarboxylic Acids
Carbon Nanotubes
dicarboxylic acids
ethylene oxide
Polyethylene oxides
Carbon nanotubes
Salts
carbon nanotubes
salts
Acids
matrices
electron clouds
Electrons
Crystallization
Thermoanalysis
Cations
Fourier transforms
Polymers
thermal analysis
Elastic moduli

Keywords

  • Carbon nanotubes
  • Composites
  • Infrared spectroscopy
  • Organic salt
  • Polyethylene oxide
  • Rheology

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Novel method for dispersion of multiwall carbon nanotubes in poly(ethylene oxide) matrix using dicarboxylic acid salts. / Ratna, Debdatta; Abraham, T. N.; Siengchin, S.; Karger-Kocsis, J.

In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 47, No. 12, 15.06.2009, p. 1156-1165.

Research output: Contribution to journalArticle

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