Light Controlled Birefringence of Liquid Crystalline Polymer Bearing an Azo Chromophore

Suk Hoon Kang, Dong Hoon Choi, Asit Baran Samui

Research output: Contribution to journalArticle

Abstract

Mesogenic and azo monomer were synthesized and copolymerized to get liquid crystalline copolymer such as polymethacrylale (CP I). Another copolymer (CP II) was prepared with methylmethacrylate using the same azo monomer used above. Trans-cis isomerization of two copolymers was observed under UV-irradiation. The stability of photoinduced birefringence in CP I was found better than that of CP II.

Original languageEnglish
Pages (from-to)61-64
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume327
Publication statusPublished - 1999 Dec 1
Externally publishedYes

Fingerprint

Bearings (structural)
Liquid crystal polymers
Chromophores
Birefringence
chromophores
birefringence
copolymers
Copolymers
polymers
liquids
monomers
Monomers
Methylmethacrylate
Isomerization
isomerization
Irradiation
Crystalline materials
irradiation
Liquids

Keywords

  • Liquid crystalline copolymer
  • Photoinduced birefringence
  • Photoisomerization

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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AU - Samui, Asit Baran

PY - 1999/12/1

Y1 - 1999/12/1

N2 - Mesogenic and azo monomer were synthesized and copolymerized to get liquid crystalline copolymer such as polymethacrylale (CP I). Another copolymer (CP II) was prepared with methylmethacrylate using the same azo monomer used above. Trans-cis isomerization of two copolymers was observed under UV-irradiation. The stability of photoinduced birefringence in CP I was found better than that of CP II.

AB - Mesogenic and azo monomer were synthesized and copolymerized to get liquid crystalline copolymer such as polymethacrylale (CP I). Another copolymer (CP II) was prepared with methylmethacrylate using the same azo monomer used above. Trans-cis isomerization of two copolymers was observed under UV-irradiation. The stability of photoinduced birefringence in CP I was found better than that of CP II.

KW - Liquid crystalline copolymer

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KW - Photoisomerization

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