Electrically induced deformation in chiral smectic elastomers with different domain structures

Yang Ho Na, Yuki Aburaya, Hiroshi Orihara, Kazuyuki Hiraoka, and Youngbae Han
Phys. Rev. E 90, 062507 – Published 29 December 2014

Abstract

Electrical actuation is investigated in two kinds of chiral smectic liquid-crystal elastomers (LCEs) with different domain structures LCE1 and LCE2: The latter is better than the former in orientational order. Tracking fluorescent beads dispersed on the samples enables us to measure the two-dimensional strain tensors in ferroelectric elastomer films. It turns out that the electric-field-induced strain is polarity dependent and the type of molecular orientation responsible for the strain is specified. In LCE1 the shear strain is dominant, whereas in LCE2 it is comparable to the elongation strain, which is explained by the rotation of the principal axes. The essential differences of the two elastomers are observed in the eigenvalues of the strain tensors. The absolute values for LCE1 are larger than those for LCE2. The difference is discussed on the basis of the domain structures.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 29 August 2014

DOI:https://doi.org/10.1103/PhysRevE.90.062507

©2014 American Physical Society

Authors & Affiliations

Yang Ho Na1,*, Yuki Aburaya2, Hiroshi Orihara2, Kazuyuki Hiraoka3, and Youngbae Han4

  • 1Department of Advanced Materials, Hannam University, Jeonmin-dong 461-6, Yuseong-gu, Daejeon 305-811, Korea
  • 2Division of Applied Physics, Faculty of Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo 060-8628, Japan
  • 3Department of Life Science & Sustainable Chemistry, Tokyo Polytechnic University, 1583 Iiyama, Atsugi 243-0297, Japan
  • 4Department of Mechanical and Design Engineering, Hongik University, Sejong-ro 2639, Jochiwon-eup, Sejong 339-701, Korea

  • *Author to whom correspondence should be addressed: yhna@hnu.kr

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 90, Iss. 6 — December 2014

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review E

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×