Photo-alignment of low-molecular mass nematic liquid crystals on photoreactive polyimide and polymethacrylate film by irradiation of a linearly polarized UV light

Dong Hoon Choi, Young Kwan Cha

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Photocrosslinkable polyimide and polymethacrylate comprising chalcone moieties in the side chain were synthesized for fabricating the alignment layer of liquid crystals. Chalcone group was introduced into the side chain unit of the polymer backbone. We observed a photodimerization behavior either in solution or in film by irradiation of a UV light. Linearly polarized UV irradiation on the chalconepolymer films induced optical anisotropy of the polymer film and the resultant film can be used for alignment layers for low molecular weight nematic liquid crystals.

Original languageEnglish
Pages (from-to)373-380
Number of pages8
JournalPolymer Bulletin
Volume48
Issue number4-5
DOIs
Publication statusPublished - 2002 Dec 1
Externally publishedYes

Fingerprint

Nematic liquid crystals
Molecular mass
polyimides
Polyimides
Ultraviolet radiation
Chalcone
liquid crystals
alignment
Irradiation
irradiation
Optical anisotropy
Liquid Crystals
Polymer films
Liquid crystals
Polymers
polymers
low molecular weights
Molecular weight
anisotropy
polymethacrylic acid

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

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