Electrorheological effect and electro-optical properties of side-on liquid crystalline polysiloxane in a nematic solvent

Kosuke Kaneko; Kodai Oto; Toshiaki Kawai; Hyunseok Choi; Hirotsugu Kikuchi; Naotake Nakamura

doi:10.1002/cphc.201300093

Electrorheological effect and electro-optical properties of side-on liquid crystalline polysiloxane in a nematic solvent

Kosuke Kaneko, Kodai Oto, Toshiaki Kawai, Hyunseok Choi, Hirotsugu Kikuchi, Naotake Nakamura

Department of Integrated Materials

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The electrorheological (ER) effect and the electro-optical properties of a ′′side-on′′ liquid crystalline polysiloxane (PS) are investigated. A large ER effect is observed and the response to the shear stress of neat PS in the nematic phase is shown to be affected by the shear rate. PS is also mixed with a low-molar nematic liquid crystal (5CB) in order to improve the response behavior to the applied electric field. The rheological properties of such mixtures are highly dependent on the concentration of 5CB. The composites respond faster to the applied electric field and have improved electro-optical properties. This study offers a new perspective on the development of liquid crystal materials for the ER effect.

Original language	English
Pages (from-to)	2704-2710
Number of pages	7
Journal	ChemPhysChem
Volume	14
Issue number	12
DOIs	https://doi.org/10.1002/cphc.201300093
Publication status	Published - Aug 26 2013

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry

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abstract = "The electrorheological (ER) effect and the electro-optical properties of a ′′side-on′′ liquid crystalline polysiloxane (PS) are investigated. A large ER effect is observed and the response to the shear stress of neat PS in the nematic phase is shown to be affected by the shear rate. PS is also mixed with a low-molar nematic liquid crystal (5CB) in order to improve the response behavior to the applied electric field. The rheological properties of such mixtures are highly dependent on the concentration of 5CB. The composites respond faster to the applied electric field and have improved electro-optical properties. This study offers a new perspective on the development of liquid crystal materials for the ER effect.",

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AU - Kaneko, Kosuke

AU - Oto, Kodai

AU - Kawai, Toshiaki

AU - Choi, Hyunseok

AU - Kikuchi, Hirotsugu

AU - Nakamura, Naotake

PY - 2013/8/26

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AB - The electrorheological (ER) effect and the electro-optical properties of a ′′side-on′′ liquid crystalline polysiloxane (PS) are investigated. A large ER effect is observed and the response to the shear stress of neat PS in the nematic phase is shown to be affected by the shear rate. PS is also mixed with a low-molar nematic liquid crystal (5CB) in order to improve the response behavior to the applied electric field. The rheological properties of such mixtures are highly dependent on the concentration of 5CB. The composites respond faster to the applied electric field and have improved electro-optical properties. This study offers a new perspective on the development of liquid crystal materials for the ER effect.

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Electrorheological effect and electro-optical properties of side-on liquid crystalline polysiloxane in a nematic solvent

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