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Photoinduced Nanoscale Cooperative Motion in a Well-Defined Triblock Copolymer

Authors

  • Haifeng Yu Dr.,

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Fax: (+81) 45-924-5275
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  • Sadayuki Asaoka Dr.,

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Fax: (+81) 45-924-5275
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  • Atsushi Shishido Dr.,

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Fax: (+81) 45-924-5275
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  • Tomokazu Iyoda Prof.,

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Fax: (+81) 45-924-5275
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  • Tomiki Ikeda Prof.

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Fax: (+81) 45-924-5275
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  • This work was supported by grants from the Japan Society for the Promotion of Science (JSPS).

Abstract

original image

Going through the motions: The molecular cooperative motion between azobenzene moieties and photoinert cyanobiphenyl groups can be confined to nanoscale mesogenic domains by microphase separation of a triblock copolymer with a poly(methyl methacrylate) (PMMA) matrix (see picture). Films of the copolymer have a large anisotropy, stable birefringence, and improved transparency due to elimination of the scattering of visible light.

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