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Title: Block Copolymer Nanocomposites in Electric Fields: Kinetics of Alignment

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.

Authors:
 [1];  [1];  [2];  [1];  [3];  [2];  [3];  [4];  [1]
  1. RWTH Aachen University
  2. ORNL
  3. Hebrew University of Jerusalem
  4. European Synchrotron Radiation Facility (ESRF)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1061573
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: ACS Macro Letters; Journal Volume: 2; Journal Issue: 1
Country of Publication:
United States
Language:
English

Citation Formats

Liedel, Clemens, Pester, Christian, Ruppel, Markus A, Lewin, Christian, Pavan, Mariela J., Urban, Volker S, Shenhar, Roy, Bosecke, Peter, and Boker, Alexander. Block Copolymer Nanocomposites in Electric Fields: Kinetics of Alignment. United States: N. p., 2013. Web. doi:10.1021/mz3005132.
Liedel, Clemens, Pester, Christian, Ruppel, Markus A, Lewin, Christian, Pavan, Mariela J., Urban, Volker S, Shenhar, Roy, Bosecke, Peter, & Boker, Alexander. Block Copolymer Nanocomposites in Electric Fields: Kinetics of Alignment. United States. doi:10.1021/mz3005132.
Liedel, Clemens, Pester, Christian, Ruppel, Markus A, Lewin, Christian, Pavan, Mariela J., Urban, Volker S, Shenhar, Roy, Bosecke, Peter, and Boker, Alexander. Tue . "Block Copolymer Nanocomposites in Electric Fields: Kinetics of Alignment". United States. doi:10.1021/mz3005132.
@article{osti_1061573,
title = {Block Copolymer Nanocomposites in Electric Fields: Kinetics of Alignment},
author = {Liedel, Clemens and Pester, Christian and Ruppel, Markus A and Lewin, Christian and Pavan, Mariela J. and Urban, Volker S and Shenhar, Roy and Bosecke, Peter and Boker, Alexander},
abstractNote = {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.},
doi = {10.1021/mz3005132},
journal = {ACS Macro Letters},
number = 1,
volume = 2,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2013},
month = {Tue Jan 01 00:00:00 EST 2013}
}