Location of the Azobenzene moieties within the cross-linked liquid-crystalline polymers can dictate the direction of photoinduced bending

Arri Priimagi, Aki Shimamura, Mizuho Kondo, Tomohiro Hiraoka, Shoichi Kubo, Jun Ichi Mamiya, Motoi Kinoshita, Tomiki Ikeda, Atsushi Shishido

    Research output: Contribution to journalArticlepeer-review

    84 Citations (Scopus)

    Abstract

    We present a simple way to control the photoinduced bending direction of azobenzene-containing cross-linked liquidcrystalline polymers. By changing the location of the photoactive azobenzene moieties from cross-links to side-chains, the bending direction of the sample is reversed under identical irradiation conditions. In addition to providing a versatile route toward directionality control of the photoinduced macroscopic motions, this observation highlights the complicated nature of the photomechanical response of azobenzene-containing cross-linked liquidcrystalline polymers, showing that the photomobile behavior can be determined by seemingly small details on the materials design.

    Original languageEnglish
    Pages (from-to)96-99
    Number of pages4
    JournalACS Macro Letters
    Volume1
    Issue number1
    DOIs
    Publication statusPublished - 2012 Jan 17

    ASJC Scopus subject areas

    • Organic Chemistry
    • Polymers and Plastics
    • Inorganic Chemistry
    • Materials Chemistry

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