Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Chizu Sekine"'
Publikováno v:
NIP & Digital Fabrication Conference. 32:314-318
Publikováno v:
Journal of Photopolymer Science and Technology. 16:303-308
Various kinds of conjugated polymers of arylene vinylene and arylene units have successfully been synthesized. They are suitable for light-emitting materials of PLED. Although some of them showed blue emission, they are not sufficient for practical d
Autor:
Kazuhiro Yokota, Hideo Takezoe, Michi Nakata, Chizu Sekine, Ken Ishikawa, Masamitsu Ishitobi, Yoichi Takanishi, Tatsutoshi Shioda
Publikováno v:
Liq. Cryst.. 30:697-700
The anisotropy of molecular polarizability Δα of several nematogens has been determined by depolarized Rayleigh light scattering. The experimentally determined values were found to be noticeably smaller than those obtained by MOPAC calculation. Δ
Publikováno v:
Liquid Crystals. 29:355-367
We have designed, synthesized and evaluated dibenzothiophenylacetylene homologues as new heterocyclic molecules which were expected to have high δα values and short wavelength UV absorption spectra. The dibenzothiophenyl acetylene homologues exhibi
Publikováno v:
Liquid Crystals. 28:1505-1512
Photopolymerizable three-ring phenylacetylene (3PA) liquid crystalline compounds were synthesized and the physical properties of the monomers and polymers were characterized in the expectation of obtaining high birefringence polymers. 3PA monomers co
Publikováno v:
Liquid Crystals. 28:1495-1503
We have synthesized new phenylacetylene-based liquid crystals containing a cyclohexyl or cyclohexylethyl group and evaluated their physical properties in order to develop a range of materials having high value of birefringence. The cyclohexyl-contain
Publikováno v:
Liquid Crystals. 28:1375-1387
We have synthesized and investigated new 3-ring phenylacetylene liquid crystals with high birefringence values (Δn) to improve the nematic temperature range while retaining a high optical anisotrop...
Publikováno v:
Liquid Crystals. 28:1361-1367
We have synthesized and evaluated the physical properties of thiophenylacetylene and benzothiazolylacetylene derivatives in order to obtain higher Δn liquid crystals as compared with analogous phenylacetylene-based compounds. These new materials had
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 364:711-718
We have synthesized new high Δ n 3-ring phenylacetylene(3PA) liquid crystals which have substituent groups with core center phenyl ring and investigated the effects of substitution on physical properties. Nematic range and viscosity were improved re
Autor:
Naoto Konya, Toru Ashida, Toshihiko Tanaka, Chizu Sekine, Masayoshi Minai, Koichi Fujisawa, Masamitsu Ishitobi
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 346:209-216
Two kinds of novel molecular materials with high optical anisotropy were synthesized and evaluated. Liquid crystalline phenylacetylene derivatives, which have mesogen of a 1,4-Bis(phenylethynyl)benzene, not only showed high δn but also were stable f