Light-Induced Macroscopic Chirality in Thin Films of Achiral Main-Chain Amorphous Polyazourea System
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概要
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We have demonstrated circularly polarized light-induced chirality in polymer thin films containing azobenzene linkages in their main-chain backbone. The material used in this study was an amorphous main-chain polyazourea with a high glass transition temperature, which was used to form the fine surface relief gratings. The induction of chirality was confirmed by measuring circular dichroism spectra of achiral polyazourea thin films irradiated with right or left circularly polarized light and was discussed in view of the massive displacement of the material. The repeatability and thermostability of the induced chirality were evaluated and compared with those of the polymers with azobenzene moieties in their side chains.
- 2006-01-15
著者
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CHOI Suk-Won
Department of Organic & Polymeric Materials, Tokyo Institute of Technology
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Takanishi Yoichi
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Takezoe Hideo
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Ishikawa Ken
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Fukuda Takashi
Photonics Research Institute National Institute Of Advanced Industrial Science And Technology
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Choi Suk-Won
Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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ISHIKAWA Ken
Department of Applied Physics, University of Tokyo
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