Surface-mediated photoalignment of discotic liquid crystals on azobenzene polymer films

Seiichi Furumi, Masatoshi Kidowaki, Masataka Ogawa, Yosuke Nishiura, Kunihiro Ichimura

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The formation of photoaligned and micropatterned discotic liquid crystal (DLC) film on the surface of photoirradiated azobenzene-containing polymer thin film was presented. The key material for the surface-mediated photoalignment of the DLCs was poly[4-(4-cyanophenylazo)phenyl methacrylate (pMAzCN). Optical anisotropy was generated in a pMAzCN film by oblique exposure to nonpolarized light which resulted in angle-selective photoisomerization and reorientation of the azobenzenes. The results show that the three-dimensionally aligned azobenzene moieties of the pMAzCN thin film were transferred to the tilted DLC molecules at air/DLC interface.

Original languageEnglish
Pages (from-to)9245-9254
Number of pages10
JournalJournal of Physical Chemistry B
Volume109
Issue number19
DOIs
Publication statusPublished - 2005 May 19
Externally publishedYes

Fingerprint

Liquid Crystals
Azobenzene
Polymer films
Liquid crystals
liquid crystals
polymers
Optical anisotropy
Photoisomerization
Thin films
thin films
retraining
anisotropy
Molecules
air
Air
azobenzene
molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Surface-mediated photoalignment of discotic liquid crystals on azobenzene polymer films. / Furumi, Seiichi; Kidowaki, Masatoshi; Ogawa, Masataka; Nishiura, Yosuke; Ichimura, Kunihiro.

In: Journal of Physical Chemistry B, Vol. 109, No. 19, 19.05.2005, p. 9245-9254.

Research output: Contribution to journalArticle

Furumi, Seiichi ; Kidowaki, Masatoshi ; Ogawa, Masataka ; Nishiura, Yosuke ; Ichimura, Kunihiro. / Surface-mediated photoalignment of discotic liquid crystals on azobenzene polymer films. In: Journal of Physical Chemistry B. 2005 ; Vol. 109, No. 19. pp. 9245-9254.
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