Electric field induced selective disordering in lamellar block copolymers

Markus Ruppel, Christian W. Pester, Karol M. Langner, Geert J.A. Sevink, Heiko G. Schoberth, Kristin Schmidt, Volker S. Urban, Jimmy W. Mays, Alexander Böker

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

External electric fields align nanostructured block copolymers by either rotation of grains or nucleation and growth depending on how strongly the chemically distinct block copolymer components are segregated. In close vicinity to the order-disorder transition, theory and simulations suggest a third mechanism: selective disordering. We present a time-resolved small-angle X-ray scattering study that demonstrates how an electric field can indeed selectively disintegrate ill-aligned lamellae in a lyotropic block copolymer solution, while lamellae with interfaces oriented parallel to the applied field prevail. The present study adds an additional mechanism to the experimentally corroborated suite of mechanistic pathways, by which nanostructured block copolymers can align with an electric field. Our results further unveil the benefit of electric field assisted annealing for mitigating orientational disorder and topological defects in block copolymer mesophases, both in close vicinity to the order-disorder transition and well below it.

Original languageEnglish (US)
Pages (from-to)3854-3867
Number of pages14
JournalACS nano
Volume7
Issue number5
DOIs
StatePublished - May 28 2013

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block copolymers
Block copolymers
Electric fields
electric fields
Order disorder transitions
disorders
lamella
X ray scattering
Nucleation
nucleation
Annealing
Defects
annealing
defects
scattering
x rays
simulation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Ruppel, M., Pester, C. W., Langner, K. M., Sevink, G. J. A., Schoberth, H. G., Schmidt, K., ... Böker, A. (2013). Electric field induced selective disordering in lamellar block copolymers. ACS nano, 7(5), 3854-3867. https://doi.org/10.1021/nn3059604
Ruppel, Markus ; Pester, Christian W. ; Langner, Karol M. ; Sevink, Geert J.A. ; Schoberth, Heiko G. ; Schmidt, Kristin ; Urban, Volker S. ; Mays, Jimmy W. ; Böker, Alexander. / Electric field induced selective disordering in lamellar block copolymers. In: ACS nano. 2013 ; Vol. 7, No. 5. pp. 3854-3867.
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Ruppel, M, Pester, CW, Langner, KM, Sevink, GJA, Schoberth, HG, Schmidt, K, Urban, VS, Mays, JW & Böker, A 2013, 'Electric field induced selective disordering in lamellar block copolymers', ACS nano, vol. 7, no. 5, pp. 3854-3867. https://doi.org/10.1021/nn3059604

Electric field induced selective disordering in lamellar block copolymers. / Ruppel, Markus; Pester, Christian W.; Langner, Karol M.; Sevink, Geert J.A.; Schoberth, Heiko G.; Schmidt, Kristin; Urban, Volker S.; Mays, Jimmy W.; Böker, Alexander.

In: ACS nano, Vol. 7, No. 5, 28.05.2013, p. 3854-3867.

Research output: Contribution to journalArticle

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AU - Schmidt, Kristin

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AU - Böker, Alexander

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Ruppel M, Pester CW, Langner KM, Sevink GJA, Schoberth HG, Schmidt K et al. Electric field induced selective disordering in lamellar block copolymers. ACS nano. 2013 May 28;7(5):3854-3867. https://doi.org/10.1021/nn3059604