Aggregation States and Electro-optical Properties Based on Light Scattering of Polymer/(Liquid Crystal) Composite Films

Tisato Kajiyama; Akira Miyamoto; Hirotsugu Kikuchi; Yasuhiro Morimura

doi:10.1246/cl.1989.813

Aggregation States and Electro-optical Properties Based on Light Scattering of Polymer/(Liquid Crystal) Composite Films

Tisato Kajiyama, Akira Miyamoto, Hirotsugu Kikuchi, Yasuhiro Morimura

Department of Integrated Materials

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Abstract

Electro-optical properties based on light scattering controlled by a.c. electric field were investigated for polymer/(liquid crystal) composite films. Scanning electron microscopic observation for the matrix polymer after extraction of LC with methanol exhibited that LC molecules were continuously embedded in a three-dimensional spongy network of polymer matrix. Such a membrane system with many optical interfaces plays an important role on light scattering without an imposed electric field. A high contrast of light-switching was observed; 3% transmittance of the as-cast composite film changed to 81% with the response time of 0.3 ms in the case of an applied 250 Vp-p a.c. electric field of 10 kHz at 333 K.

Original language	English
Pages (from-to)	813-816
Number of pages	4
Journal	Chemistry Letters
Volume	18
Issue number	5
DOIs	https://doi.org/10.1246/cl.1989.813
Publication status	Published - 1989

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title = "Aggregation States and Electro-optical Properties Based on Light Scattering of Polymer/(Liquid Crystal) Composite Films",

abstract = "Electro-optical properties based on light scattering controlled by a.c. electric field were investigated for polymer/(liquid crystal) composite films. Scanning electron microscopic observation for the matrix polymer after extraction of LC with methanol exhibited that LC molecules were continuously embedded in a three-dimensional spongy network of polymer matrix. Such a membrane system with many optical interfaces plays an important role on light scattering without an imposed electric field. A high contrast of light-switching was observed; 3% transmittance of the as-cast composite film changed to 81% with the response time of 0.3 ms in the case of an applied 250 Vp-p a.c. electric field of 10 kHz at 333 K.",

author = "Tisato Kajiyama and Akira Miyamoto and Hirotsugu Kikuchi and Yasuhiro Morimura",

year = "1989",

doi = "10.1246/cl.1989.813",

language = "English",

volume = "18",

pages = "813--816",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "The Chemical Society of Japan",

number = "5",

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TY - JOUR

T1 - Aggregation States and Electro-optical Properties Based on Light Scattering of Polymer/(Liquid Crystal) Composite Films

AU - Kajiyama, Tisato

AU - Miyamoto, Akira

AU - Kikuchi, Hirotsugu

AU - Morimura, Yasuhiro

PY - 1989

Y1 - 1989

N2 - Electro-optical properties based on light scattering controlled by a.c. electric field were investigated for polymer/(liquid crystal) composite films. Scanning electron microscopic observation for the matrix polymer after extraction of LC with methanol exhibited that LC molecules were continuously embedded in a three-dimensional spongy network of polymer matrix. Such a membrane system with many optical interfaces plays an important role on light scattering without an imposed electric field. A high contrast of light-switching was observed; 3% transmittance of the as-cast composite film changed to 81% with the response time of 0.3 ms in the case of an applied 250 Vp-p a.c. electric field of 10 kHz at 333 K.

AB - Electro-optical properties based on light scattering controlled by a.c. electric field were investigated for polymer/(liquid crystal) composite films. Scanning electron microscopic observation for the matrix polymer after extraction of LC with methanol exhibited that LC molecules were continuously embedded in a three-dimensional spongy network of polymer matrix. Such a membrane system with many optical interfaces plays an important role on light scattering without an imposed electric field. A high contrast of light-switching was observed; 3% transmittance of the as-cast composite film changed to 81% with the response time of 0.3 ms in the case of an applied 250 Vp-p a.c. electric field of 10 kHz at 333 K.

U2 - 10.1246/cl.1989.813

DO - 10.1246/cl.1989.813

M3 - Article

SN - 0366-7022

VL - 18

SP - 813

EP - 816

JO - Chemistry Letters

JF - Chemistry Letters

IS - 5

ER -

Aggregation States and Electro-optical Properties Based on Light Scattering of Polymer/(Liquid Crystal) Composite Films

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