Block copolymer nanocomposites in electric fields: Kinetics of alignment

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

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 languageAmerican English
Pages (from-to)53-58
Number of pages6
JournalACS Macro Letters
Volume2
Issue number1
DOIs
StatePublished - 15 Jan 2013

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