Single-walled carbon nanotubes embedded in oriented polymeric nanofibers by electrospinning

Wael Salalha, Yael Dror, Rafail L. Khalfin, Yachin Cohen, Alexander Yarin, Eyal Zussman

Research output: Contribution to journalArticle

183 Citations (Scopus)

Abstract

The electrospinning process was used successfully to embed single-walled carbon nanotubes (SWCNTs) in a poly(ethylene oxide) (PEO) matrix, forming composite nanofibers. Initial dispersion of SWCNTs in water was achieved by the use of an amphiphilic alternating copolymer of styrene and sodium maleate. The resulting dispersions were stable, having a dark, smooth, ink-like appearance. For electrospinning, the dispersions were mixed with PEO solution in an ethanol/water mixture. The distribution and conformation of the nanotubes in the nanofibers were studied by transmission electron microscopy (TEM). Oxygen plasma etching was used to expose the nanotubes within the nanofibers to facilitate direct observation. Nanotube alignment within the nanofibers was shown to depend strongly on the quality of the initial dispersions. Well-dispersed and separated nanotubes were embedded in a straight and aligned form, while entangled nonseparated nanotubes were incorporated as dense aggregates. X-ray diffraction demonstrated a high degree of orientation of the PEO crystals in the electrospun nanofibers with embedded SWCNTs. This result is in pronounced distinction to the detrimental effect of incorporation of multiwalled carbon nanotubes on polymer orientation in electrospun nanofibers, as reported previously.

Original languageEnglish
Pages (from-to)9852-9855
Number of pages4
JournalLangmuir
Volume20
Issue number22
DOIs
Publication statusPublished - 2004 Oct 26
Externally publishedYes

Fingerprint

Nanofibers
Carbon Nanotubes
Electrospinning
Nanotubes
Single-walled carbon nanotubes (SWCN)
nanotubes
carbon nanotubes
Polyethylene oxides
Dispersions
maleates
oxygen plasma
inks
plasma etching
Ethylene Oxide
ethylene oxide
Ink
styrenes
Plasma etching
Water
Multiwalled carbon nanotubes (MWCN)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Salalha, W., Dror, Y., Khalfin, R. L., Cohen, Y., Yarin, A., & Zussman, E. (2004). Single-walled carbon nanotubes embedded in oriented polymeric nanofibers by electrospinning. Langmuir, 20(22), 9852-9855. https://doi.org/10.1021/la048536b

Single-walled carbon nanotubes embedded in oriented polymeric nanofibers by electrospinning. / Salalha, Wael; Dror, Yael; Khalfin, Rafail L.; Cohen, Yachin; Yarin, Alexander; Zussman, Eyal.

In: Langmuir, Vol. 20, No. 22, 26.10.2004, p. 9852-9855.

Research output: Contribution to journalArticle

Salalha, W, Dror, Y, Khalfin, RL, Cohen, Y, Yarin, A & Zussman, E 2004, 'Single-walled carbon nanotubes embedded in oriented polymeric nanofibers by electrospinning', Langmuir, vol. 20, no. 22, pp. 9852-9855. https://doi.org/10.1021/la048536b
Salalha W, Dror Y, Khalfin RL, Cohen Y, Yarin A, Zussman E. Single-walled carbon nanotubes embedded in oriented polymeric nanofibers by electrospinning. Langmuir. 2004 Oct 26;20(22):9852-9855. https://doi.org/10.1021/la048536b
Salalha, Wael ; Dror, Yael ; Khalfin, Rafail L. ; Cohen, Yachin ; Yarin, Alexander ; Zussman, Eyal. / Single-walled carbon nanotubes embedded in oriented polymeric nanofibers by electrospinning. In: Langmuir. 2004 ; Vol. 20, No. 22. pp. 9852-9855.
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