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Monte Carlo simulations of diblock copolymer thin films confined between two homogeneous surfaces

J. Chem. Phys. 112, 450 (2000); doi:10.1063/1.480639

Issue Date: 1 January 2000

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Qiang Wang, Qiliang Yan, Paul F. Nealey, and Juan J. de Pablo
Department of Chemical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706-1691
Thin films of symmetric diblock copolymers confined between two hard, flat and homogeneous surfaces have been investigated by means of Monte Carlo simulations on a simple cubic lattice. For such simulations, the match between bulk lamellar period L0 and the simulation box size is crucial to obtain meaningful results. The simulations have been performed in an expanded grand-canonical ensemble, where the chemical potential and the temperature of the confined films are specified and the density is allowed to fluctuate. The dependence of morphology, density, and chain conformation in the confined films on the type of surfaces, surface separation, and the strength of surface-block interactions has been studied systematically. Our results are consistent with experimental findings. ©2000 American Institute of Physics.
History: Received 27 July 1999; accepted 30 September 1999
Permalink: http://link.aip.org/link/?JCPSA6/112/450/1
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KEYWORDS and PACS

Keywords
PACS
  • 61.41.+e
    Structure of solids and liquids; crystallography Polymers, elastomers, and plastics
  • 68.55.-a
    Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) Thin film structure and morphology
  • 61.43.Bn
    Structure of solids and liquids; crystallography Disordered solids Structural modeling: serial-addition models, computer simulation
  • 02.70.Lq
    Mathematical methods in physics Computational techniques Monte Carlo and statistical methods
  • YEAR: 2000

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

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