Kinetic pathway of gyroid-to-cylinder transition in diblock copolymer melt under an electric field

Dung Q. Ly, Takashi Honda, Toshihiro Kawakatsu, Andrei V. Zvelindovsky

研究成果: Article査読

45 被引用数 (Scopus)

抄録

Gyroid-to-cylinder transition in a diblock copolymer melt under an electric field is studied by real-space dynamical self-consistent-field theory. Starting from an equilibrium gyroid structure, we apply an electric field along [111], [ 11̄d], and [112̄] directions of the conventional unit cell of the gyroid structure. Under sufficiently high value of the electric field, an epitaxial transition to cylinders occurs. Contrary to the case of a similar transition under the shear flow, we observe 5-fold connections as intermediates in the transition. We found a critical behavior of the lifetime of the initial gyroid structure, which can be accounted for using the mean-field argument. Numerically obtained scattering function explains the unclarified intermediates experimentally observed in the thermal relaxation of a sheared gyroid.

本文言語English
ページ(範囲)2928-2935
ページ数8
ジャーナルMacromolecules
40
8
DOI
出版ステータスPublished - 2007 4月 17

ASJC Scopus subject areas

  • 有機化学
  • ポリマーおよびプラスチック
  • 無機化学
  • 材料化学

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