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Volume 76, Issue 1
Displaying 1-6 of 6 articles from this issue
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Y. HYODO, S. YAGI, H. KITAYAMA, H. NAKAZUMI2003Volume 76Issue 1 Pages 3-8
Published: January 20, 2003
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDichroic properties of squarylium dyes which dissolved as guest molecules in low-molecular-weight liquid crystal were investigated for the design of novel polymer liquid crystals containing dicroic squarylium dyes. It was found that unsymmetrical squarylium dyes containing a benzothiazole moiety showed the best dichroic ratio and order parameter in low-molecular-weight liquid crystal.
As squarylium dye monomers, blue squarylium monomers (3) containing a benzoyl group with an acryloyl group were prepared by the reaction of N-ethylhydroxy derivative of benzothiazole-unsymmetrical squarylium dyes with benzoic acid derivative containing an acryloyl group in the presence of 2-chloro-l-methylpyridinium iodide, DMAP, and benzene, at 65°C, for 12 h. Novel copolymer liquid crystals with 1.0% or 0.75% squarylium dye content were obtained by copolymerization of blue squarylium monomers with 4-cyanophenyl 4- (6-acryloyloxyhexyloxy) benzoate, as a mesogenic monomer, at 70°C for 24 h.View full abstractDownload PDF (749K) -
Yasuo ISHII2003Volume 76Issue 1 Pages 9-14
Published: January 20, 2003
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (920K) -
AKIRA MATSUI2003Volume 76Issue 1 Pages 15-23
Published: January 20, 2003
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (1678K) -
Miyao INOUE, Masa-aki HAGA2003Volume 76Issue 1 Pages 24-33
Published: January 20, 2003
Released on J-STAGE: November 20, 2012
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Susumu HIBI, Masahiro YAMAUCHI2003Volume 76Issue 1 Pages 34-39
Published: January 20, 2003
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (1250K) -
Shigeyasu INOUE2003Volume 76Issue 1 Pages 40-46
Published: January 20, 2003
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (1565K)
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