Photoresponsive Anisotropic Soft Solids: Liquid‐Crystalline Physical Gels Based on a Chiral Photochromic Gelator | Zendy

Moriyama M. | Zendy; Mizoshita N. | Zendy; Yokota T. | Zendy; Kishimoto K. | Zendy; Kato T. | Zendy

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Photoresponsive Anisotropic Soft Solids: Liquid‐Crystalline Physical Gels Based on a Chiral Photochromic Gelator

Author(s) -

Moriyama M.,

Mizoshita N.,

Yokota T.,

Kishimoto K.,

Kato T.

Publication year - 2003

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200305056

Subject(s) - photoisomerization , azobenzene , liquid crystal , photochromism , materials science , liquid crystalline , soft materials , chemical engineering , photochemistry , nanotechnology , organic chemistry , polymer , composite material , optoelectronics , isomerization , catalysis , chemistry , engineering

Photoinduced reversible structural changes of anisotropic physical gels are applied to re‐writable patterning (see Figure, a photo of a re‐writable pattern). The change between a nematic gel and a cholesteric gel via a cholesteric liquid‐crystalline sol state is induced by trans – cis photoisomerization of the azobenzene moieties in a chiral hydrogen‐bonded gelator blended with a nematic liquid crystal.

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