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

75 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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