Superamphiphilic janus fabric

Ho Sun Lim, Song Hee Park, Song Hee Koo, Young Je Kwark, Edwin L. Thomas, Youngjin Jeong, Jeong Ho Cho

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Janus fabrics with superamphiphilicity were fabricated via electrospinning of polyacrylonitrile (PAN). PAN nanofibrous mats were formed on an aluminum foil substrate and then thermally treated to cause hydrolysis. An identical PAN solution was subsequently electrospun onto the hydrolyzed PAN layer, followed by peeling off of the bicomposite film from the collector substrate to produce a free-standing Janus fabric. On one side, the electrospun PAN mat exhibited superhydrophobic properties, with a water contact angle of 151.2°, whereas the initially superhydrophobic PAN sheet on the opposite side of the fabric was converted to a superhydrophilic surface (water contact angle of 0°) through hydrolysis of the surface functional groups induced by the thermal treatment. The resulting Janus fabrics exhibited both superhydrophobicity, repelling water on the one side, and superhydrophilicity, absorbing water on the other side. The organic solvent resistance of the PAN nanofibrous sheets was remarkably improved by incorporation of a tetraethyl orthosilicate. This facile and simple technique introduces a new route for the design and development of functional smart, robust fabrics from an inexpensive, commercially available polymer.

Original languageEnglish
Pages (from-to)19159-19162
Number of pages4
JournalLangmuir
Volume26
Issue number24
DOIs
Publication statusPublished - 2010 Dec 21

Fingerprint

Janus
polyacrylonitrile
Polyacrylonitriles
Contact angle
hydrolysis
Water
Hydrolysis
water
tetraethyl orthosilicate
Aluminum foil
peeling
Peeling
Electrospinning
Substrates
surface water
Surface waters
accumulators
Organic solvents
Functional groups
foils

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Lim, H. S., Park, S. H., Koo, S. H., Kwark, Y. J., Thomas, E. L., Jeong, Y., & Cho, J. H. (2010). Superamphiphilic janus fabric. Langmuir, 26(24), 19159-19162. https://doi.org/10.1021/la103829c
Lim, Ho Sun ; Park, Song Hee ; Koo, Song Hee ; Kwark, Young Je ; Thomas, Edwin L. ; Jeong, Youngjin ; Cho, Jeong Ho. / Superamphiphilic janus fabric. In: Langmuir. 2010 ; Vol. 26, No. 24. pp. 19159-19162.
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Lim, HS, Park, SH, Koo, SH, Kwark, YJ, Thomas, EL, Jeong, Y & Cho, JH 2010, 'Superamphiphilic janus fabric', Langmuir, vol. 26, no. 24, pp. 19159-19162. https://doi.org/10.1021/la103829c

Superamphiphilic janus fabric. / Lim, Ho Sun; Park, Song Hee; Koo, Song Hee; Kwark, Young Je; Thomas, Edwin L.; Jeong, Youngjin; Cho, Jeong Ho.

In: Langmuir, Vol. 26, No. 24, 21.12.2010, p. 19159-19162.

Research output: Contribution to journalArticle

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Lim HS, Park SH, Koo SH, Kwark YJ, Thomas EL, Jeong Y et al. Superamphiphilic janus fabric. Langmuir. 2010 Dec 21;26(24):19159-19162. https://doi.org/10.1021/la103829c