Block copolymer nanocomposites in electric fields: Kinetics of alignment

Clemens Liedel, Christian Pester, Markus Ruppel, Christian Lewin, Mariela J. Pavan, Volker S. Urban, Roy Shenhar, Peter Bösecke, Alexander Böker

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We investigate the kinetics of block copolymer/nanoparticle composite alignment in an electric field using in situ transmission small-angle X-ray scattering. As a model system, we employ a lamellae forming polystyrene-block- poly(2-vinyl pyridine) block copolymer with different contents of gold nanoparticles in thick films under solvent vapor annealing. While the alignment improves with increasing nanoparticle fraction, the kinetics slows down. This is explained by changes in the degree of phase separation and viscosity. Our findings provide extended insights into the basics of nanocomposite alignment.

Original languageEnglish (US)
Pages (from-to)53-58
Number of pages6
JournalACS Macro Letters
Volume2
Issue number1
DOIs
StatePublished - Jan 24 2013

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Block copolymers
Nanocomposites
Electric fields
Nanoparticles
Kinetics
Polystyrenes
X ray scattering
Thick films
Phase separation
Gold
Pyridine
Vapors
Annealing
Viscosity
Composite materials
pyridine

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Liedel, C., Pester, C., Ruppel, M., Lewin, C., Pavan, M. J., Urban, V. S., ... Böker, A. (2013). Block copolymer nanocomposites in electric fields: Kinetics of alignment. ACS Macro Letters, 2(1), 53-58. https://doi.org/10.1021/mz3005132
Liedel, Clemens ; Pester, Christian ; Ruppel, Markus ; Lewin, Christian ; Pavan, Mariela J. ; Urban, Volker S. ; Shenhar, Roy ; Bösecke, Peter ; Böker, Alexander. / Block copolymer nanocomposites in electric fields : Kinetics of alignment. In: ACS Macro Letters. 2013 ; Vol. 2, No. 1. pp. 53-58.
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Liedel, C, Pester, C, Ruppel, M, Lewin, C, Pavan, MJ, Urban, VS, Shenhar, R, Bösecke, P & Böker, A 2013, 'Block copolymer nanocomposites in electric fields: Kinetics of alignment', ACS Macro Letters, vol. 2, no. 1, pp. 53-58. https://doi.org/10.1021/mz3005132

Block copolymer nanocomposites in electric fields : Kinetics of alignment. / Liedel, Clemens; Pester, Christian; Ruppel, Markus; Lewin, Christian; Pavan, Mariela J.; Urban, Volker S.; Shenhar, Roy; Bösecke, Peter; Böker, Alexander.

In: ACS Macro Letters, Vol. 2, No. 1, 24.01.2013, p. 53-58.

Research output: Contribution to journalArticle

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T1 - Block copolymer nanocomposites in electric fields

T2 - Kinetics of alignment

AU - Liedel, Clemens

AU - Pester, Christian

AU - Ruppel, Markus

AU - Lewin, Christian

AU - Pavan, Mariela J.

AU - Urban, Volker S.

AU - Shenhar, Roy

AU - Bösecke, Peter

AU - Böker, Alexander

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AB - We investigate the kinetics of block copolymer/nanoparticle composite alignment in an electric field using in situ transmission small-angle X-ray scattering. As a model system, we employ a lamellae forming polystyrene-block- poly(2-vinyl pyridine) block copolymer with different contents of gold nanoparticles in thick films under solvent vapor annealing. While the alignment improves with increasing nanoparticle fraction, the kinetics slows down. This is explained by changes in the degree of phase separation and viscosity. Our findings provide extended insights into the basics of nanocomposite alignment.

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