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

doi:10.1021/mz3005132

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

Neutron Scattering Division

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	53-58
Number of pages	6
Journal	ACS Macro Letters
Volume	2
Issue number	1
DOIs	https://doi.org/10.1021/mz3005132
State	Published - Jan 15 2013

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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.",

author = "Clemens Liedel and Pester, {Christian W.} and Markus Ruppel and Christian Lewin and Pavan, {Mariela J.} and Urban, {Volker S.} and Roy Shenhar and Peter B{\"o}secke and Alexander B{\"o}ker",

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T1 - Block copolymer nanocomposites in electric fields

T2 - Kinetics of alignment

AU - Liedel, Clemens

AU - Pester, Christian W.

AU - Ruppel, Markus

AU - Lewin, Christian

AU - Pavan, Mariela J.

AU - Urban, Volker S.

AU - Shenhar, Roy

AU - Bösecke, Peter

AU - Böker, Alexander

PY - 2013/1/15

Y1 - 2013/1/15

N2 - 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.

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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U2 - 10.1021/mz3005132

DO - 10.1021/mz3005132

M3 - Article

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SP - 53

EP - 58

JO - ACS Macro Letters

JF - ACS Macro Letters

IS - 1

ER -

Block copolymer nanocomposites in electric fields: Kinetics of alignment

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