Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Shigekuni Sasaki"'
Autor:
Akira Yabe, Tohru Matsuura, Tadatake Sato, Shigekuni Sasaki, Sundaram Arulmozhiraja, Hiroyuki Niino
Publikováno v:
Journal of the American Chemical Society. 124:4512-4521
Toward direct observation of benzdiynes, we investigated the wavelength-selective photolyses of five kinds of benzenetetracarboxylic dianhydride derivatives in nitrogen matrixes at 13 K. In the first step of the photolyses, all dianhydrides were conv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29f4c176300b3a189b9d85017c1d16cc
https://doi.org/10.1021/ja017566n
https://doi.org/10.1021/ja017566n
Publikováno v:
Applied optics. 38(6)
Heat-resistant flexible-film optical waveguides were fabricated from fluorinated polyimides. These waveguides operated in single mode and had low optical loss (0.3 dB/cm) at a wavelength of 1.3 microm for TE and TM polarizations. They also had good f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19bb60c97b4011e261198fde0395b811
https://pubmed.ncbi.nlm.nih.gov/18305699
https://pubmed.ncbi.nlm.nih.gov/18305699
Publikováno v:
Organic Thin Films for Photonics Applications.
Thermooptic (TO) switches using polymer optical waveguides have attracted much attention because the TO effect of polymers is ten times that of silica. Therefore, using polymers instead of silica [1-2] significantly reduces the required switching pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e358ac045f80870ce1ae54c916b0271c
https://doi.org/10.1364/otfa.1997.fa.4
https://doi.org/10.1364/otfa.1997.fa.4
Autor:
Tohru Matsuura, Shinji Ando, Shinsuke Matsui, Hirooki Hirata, Shigekuni Sasaki, Fumio Yamamoto
Publikováno v:
Organic Thin Films for Photonic Applications.
Polymer optical waveguides are attractive for economical and practical optoelectronic devices and interconnections in optical communication systems.1) High thermal stability should have the first priority in optical waveguides used for these purposes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93ec6c32524f145e44209bb2374768b4
https://doi.org/10.1364/otfa.1993.fa.3
https://doi.org/10.1364/otfa.1993.fa.3
In-Plane Birefringence of Polyimide Films Prepared on Substrates Having Thermal Expansion Anisotropy
Publikováno v:
Japanese Journal of Applied Physics. 34:L1470
Polyimide films whose refractive indices in the film plane show anisotropy (in-plane birefringence, Δn) were prepared by a novel method based on the anisotropy of thermal expansion coefficients (Δα) of single crystal substrates. Polyimide molecula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a398fc82f6cd90f7e52d37e9eb7f51c
https://doi.org/10.1143/jjap.34.l1470
https://doi.org/10.1143/jjap.34.l1470
Autor:
Shigekuni Sasaki, Nobuo Ishikawa
Publikováno v:
Bulletin of the Chemical Society of Japan. 50:2164-2167
Utilizing the high reactivity of hexafluoro-1,2-epoxypropane (HFPO, hexafluoropropylene oxide), several new benzoheterocyclic compounds containing CF3 and C2F5 were prepared as follows: (1) 2-(pentafluoroethyl)benzoxazoles by treating 2-aminophenols
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e26ff0449da2b81448c57f8194e3300
https://doi.org/10.1246/bcsj.50.2164
https://doi.org/10.1246/bcsj.50.2164
Autor:
Nobuo Ishikawa, Shigekuni Sasaki
Publikováno v:
Chemischer Informationsdienst. 8
Carboxylic acid fluorides were prepared by treating free carboxylic acids with hexafluoro-1,2-epoxypropane in the presence of triethylamine or N,N-dimethylaniline under mild conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7757ceefbbbbe6f6fa1566502e3d103
https://doi.org/10.1002/chin.197725198
https://doi.org/10.1002/chin.197725198
Autor:
Nobuo Ishikawa, Shigekuni Sasaki
Publikováno v:
Chemischer Informationsdienst. 8
Utilizing the high reactivity of hexafluoro-1,2-epoxypropane (HFPO, hexafluoropropylene oxide), several new benzoheterocyclic compounds containing CF3 and C2F5 were prepared as follows: (1) 2-(pentafluoroethyl)benzoxazoles by treating 2-aminophenols
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe4fb2cd7b9483e2ff0716f89597ad6e
https://doi.org/10.1002/chin.197744234
https://doi.org/10.1002/chin.197744234
Autor:
Shigekuni Sasaki, Yoshinori Hasuda
Publikováno v:
The Journal of Adhesion. 25:159-160
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4462f989838a4d1cb2fcfb0bd019428e
https://doi.org/10.1080/00218468808071257
https://doi.org/10.1080/00218468808071257
Autor:
Shigekuni Sasaki, Nobuo Ishikawa
Publikováno v:
Chemistry Letters. 5:1407-1408
Carboxylic acid fluorides were prepared by treating free carboxylic acids with hexafluoro-1,2-epoxypropane in the presence of triethylamine or N,N-dimethylaniline under mild conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af5e571c832441e9c3ebb46530ed1c34
https://doi.org/10.1246/cl.1976.1407
https://doi.org/10.1246/cl.1976.1407