Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Sadao Takehara"'
Autor:
Yoshinori Iwashita, Rainer B. Frings, Yutaka Nagashima, Makoto Negishi, Yoshitaka Saito, Tetsuo Kusumoto, Sadao Takehara, Gerwald F Dipl Chem Dr Grahe, Kiyofumi Takeuchi, Artur Lachowicz, Haruyoshi Takatsu, Corneria Pithart
Publikováno v:
Molecular Crystals and Liquid Crystals. 411:155-161
Liquid crystal materials having a fluoro-substituted tetrahydro-naphthalene structure were designed for active matrix LCD. 6-Aryl-5-fluoro-1,2,3,4- tetrahydronaphthalenes and 5,6-difluoro-1,2,3,4-tetrahydronaphthalenes were prepared by regioselective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b29561c624ff3ee0a692d125fbcff94
https://doi.org/10.1080/15421400490434973
https://doi.org/10.1080/15421400490434973
Autor:
Yoshinori Iwashita, Sadao Takehara, Haruyoshi Takatsu, Yasuo Umezu, Kiyofumi Takeuchi, Shotaro Kawakami, Tetsuo Kusumoto
Publikováno v:
Molecular Crystals and Liquid Crystals. 411:41-48
The liquid crystal (LC) mixtures with fused ring systems such as Decahydronaphthalenes and Tetrahydronaphthalenes for reflective or transflective active-matrix liquid crystal display (AM-LCD) have higher durability than LC mixtures with ester-compone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08846afb2e3afcb58c108c8fd4de80a5
https://doi.org/10.1080/15421400490434559
https://doi.org/10.1080/15421400490434559
Autor:
Sadao Takehara, Makoto Negishi, Tatsuo Kawara, Kiyofumi Takeuchi, Masashi Osawa, Tetsuo Kusumoto, Haruyoshi Takatsu, Ogawa Shinji
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 364:865-872
Novel 1-fluoro- and 1,2-difluoronaphthalene derivatives were designed for active matrix LCD and were prepared through the regioselective fluorination of 6-substituted 2-naphthols. These compounds exhibited high nematic-isotropic transition temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a01cc9b781d98d379046eb2f2aaf8e3b
https://doi.org/10.1080/10587250108025059
https://doi.org/10.1080/10587250108025059
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 364:851-858
We studied the physical properties of three series of new fluorinated liquid crystal components and prepared some mixtures by using these components. Decahydronaphthalenes have low Δn with relatively high T NI. Naphthalenes and Tetrahydronaphthalene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11215fafd90ab26cf77611ee4d14f177
https://doi.org/10.1080/10587250108025057
https://doi.org/10.1080/10587250108025057
Autor:
Yutaka Nagashima, Kiyofumi Takeuchi, Corneria Pithart, Gerwald F. Grahe, Artur Lachowicz, Haruyoshi Takatsu, Tetsuo Kusumoto, Rainer B. Frings, Makoto Negishi, Sadao Takehara
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 364:859-864
Liquid crystal materials having a decahydronaphthalene ring structure were designed for active matrix LCD and were prepared by hydrogenation of the ocatahydronaphthalenes obtained through the reaction of a fluorinated phenyl magnesium bromide with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f612e815f0b2a3fa0bfdc20f71da339
https://doi.org/10.1080/10587250108025058
https://doi.org/10.1080/10587250108025058
Publikováno v:
Bulletin of the Chemical Society of Japan. 73:1633-1643
A facile synthetic method of vic-difluoro olefins from the corresponding olefins is explored and applied to the synthesis of liquid crystals (LCs) having a terminal vic-difluoro olefinic moiety. The physical and electro-optical properties of these LC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f44c95b46c1c32b27d59bce115a3912
https://doi.org/10.1246/bcsj.73.1633
https://doi.org/10.1246/bcsj.73.1633
Publikováno v:
Bulletin of the Chemical Society of Japan. 72:2523-2535
Liquid crystals (LCs) containing a trifluoromethylamino group are prepared by the cross-coupling reaction of p-bromo-substituted-(hetero)aryl(trifluoromethyl)amines that are derived from the corresponding dithiocarbamates through oxidative desulfuriz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6c00d4ca7f9a4b9886c3b37ae1d9bb9
https://doi.org/10.1246/bcsj.72.2523
https://doi.org/10.1246/bcsj.72.2523
Publikováno v:
Journal of Fluorine Chemistry. 97:201-206
A convenient synthetic method is described for 3-substituted aromatic trifluoromethyl ethers through an oxidative desulfurization–fluorination reaction. Upon addition to liquid crystalline materials, these ethers lower birefringence (Δ n ) of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f230475c2adf8c693e19728be5d43129
https://doi.org/10.1016/s0022-1139(99)00049-4
https://doi.org/10.1016/s0022-1139(99)00049-4
Publikováno v:
Catalysis Today. 45:307-312
Cosmo Oil and Petroleum Energy Center (PEC) have developed a new hydrodesulfurization (HDS) catalyst of high activity, C-603A, to produce clean diesel fuel, whose sulfur content is less than 0.05 mass%. The preparation of this catalyst combines the u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0100609b43f72c9fda35e716cdb7dc31
https://doi.org/10.1016/s0920-5861(98)00235-1
https://doi.org/10.1016/s0920-5861(98)00235-1
Publikováno v:
KAGAKU KOGAKU RONBUNSHU. 24:653-659
本論文では, 水素化脱硫反応における反応の初期, 中期, 後期の各触媒活性劣化を, コーキングおよびメタル (Ni, V) の付着に起因する活性点と有効拡散係数の減少による挙動として理論的
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8369e4df0a41acecc0dbe4976904bff8
https://doi.org/10.1252/kakoronbunshu.24.653
https://doi.org/10.1252/kakoronbunshu.24.653