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Proceedings Paper

Photoinduced bending of polymer films
Author(s): Tomiki Ikeda; Taketo Maeda; Mizuho Kondo; Yanlei Yu
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Paper Abstract

Photoinduced bending and unbending behavior of cross-linked polymer films, prepared by in-situ polymerization of liquid-crystalline (LC) monomers with azobenzene moieties, is discussed. Various modes of bending have been achieved with various alignments of the photoactive mesogens in the elastomers. Exposure of a monodomain film to UV light to cause trans-cis isomerization of the azobenzene moieties leads to the bending of the film toward irradiation direction of the actinic light. Irradiation of a polydomain film with linearly polarized light results in the bending along the polarization direction of the light, which enables bending of the film along any direction. The LC alignment in the films significantly affected the photoinduced bending behavior.

Paper Details

Date Published: 20 September 2005
PDF: 8 pages
Proc. SPIE 5947, Liquid Crystals: Optics and Applications, 59470E (20 September 2005); doi: 10.1117/12.622440
Show Author Affiliations
Tomiki Ikeda, Tokyo Institute of Technology (Japan)
Taketo Maeda, Tokyo Institute of Technology (Japan)
Mizuho Kondo, Tokyo Institute of Technology (Japan)
Yanlei Yu, Fudan Univ. (China)

Published in SPIE Proceedings Vol. 5947:
Liquid Crystals: Optics and Applications
Tomasz R. Wolinski; Marc Warenghem; Shin-Tson Wu, Editor(s)

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