Dynamic self-consistent field theory and Navier–Stokes equation are coupled to study hydrodynamic effects on the disorder-to-order transition of diblock copolymer melts. Simulations are performed for different values of the viscosity and the results are compared with those without the hydrodynamic effects. The lower the viscosity is, the faster the free energy density decays. Starting from uniformly mixed initial states, body-centered-cubic spheres, hexagonally packed cylinders, and lamellar structures are obtained in the presence of the hydrodynamic effects. On the contrary, the bicontinuous double gyroid structure cannot be obtained even with the hydrodynamic effects. The scattering intensities of the domain structures are calculated to confirm these properties of the ordering of the structures.
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21 September 2008
Research Article|
September 19 2008
Hydrodynamic effects on the disorder-to-order transitions of diblock copolymer melts
Takashi Honda;
Takashi Honda
a)
1Production Innovation Center,
ZEON Corporation
, Marunouchi, Chiyoda-ku, Tokyo 100-8248, Japan
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Toshihiro Kawakatsu
Toshihiro Kawakatsu
2Department of Physics,
Tohoku University
, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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a)
Author to whom correspondence should be addressed. Electronic mail: thonda@octa.jp.
J. Chem. Phys. 129, 114904 (2008)
Article history
Received:
April 24 2008
Accepted:
August 11 2008
Citation
Takashi Honda, Toshihiro Kawakatsu; Hydrodynamic effects on the disorder-to-order transitions of diblock copolymer melts. J. Chem. Phys. 21 September 2008; 129 (11): 114904. https://doi.org/10.1063/1.2977742
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