Zobrazeno 1 - 10
of 295
pro vyhledávání: '"Hidefumi Hirai"'
Autor:
Yukihide Shiraishi, Hidefumi Hirai
Publikováno v:
Reactive and Functional Polymers. 67:1115-1128
The direct introduction of a carboxylic group into an aromatic carboxylic acid has been considered difficult theoretically. Recently, the regioselective syntheses of terephthalic acid, 4,4′-biphenyldicarboxylic acid and 2,6-naphthalene-dicarboxylic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48f6d155018fd2e6f0c9ec23d4d7a93a
https://doi.org/10.1016/j.reactfunctpolym.2007.07.013
https://doi.org/10.1016/j.reactfunctpolym.2007.07.013
Autor:
Hidefumi Hirai
Publikováno v:
Polymers for Advanced Technologies. 14:266-272
The radical copolymerization of methyl methacrylate (MMA) and styrene (St) in the presence of various metal halides was conducted to achieve the advanced regulation of comonomer-sequence and stereosequence in the resulting copolymers. The alternation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8668b0a8dc69676885788da1b7f42762
https://doi.org/10.1002/pat.332
https://doi.org/10.1002/pat.332
Autor:
Noboru Yakura, Hidefumi Hirai
Publikováno v:
Polymers for Advanced Technologies. 12:724-733
Poly(N-vinyl-2-pyrrolidone) (PVP) was chosen as a protecting polymer for its large protective value among homopolymers. Suspensions of palladium (Pd) nanoparticles were prepared by refluxing solutions of palladium(II) chloride and PVP in methanol. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb75645c5bb52ec4c2edc038f05a7ed9
https://doi.org/10.1002/pat.95
https://doi.org/10.1002/pat.95
Autor:
Naoki Toshima, Tokiji Kawamura, Hiroaki Shirai, Yukihide Shiraishi, Hisashi Mihori, Hidefumi Hirai
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 139:149-158
The selective synthesis of 2,6-naphthalenedicarboxylic acid from 2-naphthalenecarboxylic acid with carbon tetrachloride, copper powder, and aqueous alkali was achieved by using of β-cyclodextrin (β-CyD) as a catalyst at 60°C under nitrogen, produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e14d862ee8b25d58d410df25512b85b4
https://doi.org/10.1016/s1381-1169(98)00203-9
https://doi.org/10.1016/s1381-1169(98)00203-9
Publikováno v:
Reactive and Functional Polymers. 37:121-131
Suspensions of palladium nanoparticles protected with poly( N -vinyl-2-pyrrolidone) (PVP) were prepared by refluxing the solution of palladium(II) chloride in methanol in the presence of PVP with various weight-average molecular weight ( M W = 6 000,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c11e1fbf650a99b5284fc0da0c94dfe1
https://doi.org/10.1016/s1381-5148(97)00169-7
https://doi.org/10.1016/s1381-5148(97)00169-7
Publikováno v:
Reactive and Functional Polymers. 37:199-212
A copper(I) chloride-N,N,N′,N′-tetramethyl-1,2-ethanediamine complex supported on silica gel was prepared by mixing porous silica gel with an acetonitrile solution containing the complex composed of copper(I) chloride (CuCl) and N,N,N′,N′-tet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::010a65999dda055b7f5a89936d4a5507
https://doi.org/10.1016/s1381-5148(97)00170-3
https://doi.org/10.1016/s1381-5148(97)00170-3
Autor:
Hiroaki Tagawa, Takuya Hashimoto, Hidefumi Hirai, Hideki Tanaka, Takehisa Kobayashi, Ryo Hirasawa
Publikováno v:
Solid State Ionics. 108:371-376
Dependence of oxygen deficiency of BaBiO 3-δ on temperature and oxygen partial pressure at a state of equilibrium was investigated by thermogravimetry. Two phases, one with 0.00 ≤ δ < 0.03 (phase I) and the other with 0.43 < δ ≤ 0.50 (phase II
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6e319da30ebb252cf5ffc177642af3f
https://doi.org/10.1016/s0167-2738(98)00065-4
https://doi.org/10.1016/s0167-2738(98)00065-4
Publikováno v:
Reactive and Functional Polymers. 36:99-102
The introduction of two carboxyl groups into the 4- and 4′-positions of biphenyl has been achieved by the one-step reaction of biphenyl, carbon tetrachloride and copper powder in aqueous alkali by the use of β-cyclodextrin as catalyst at 78°C und
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::400188126a0a0b140dce2bcf1e3eb4d8
https://doi.org/10.1016/s1381-5148(97)00096-5
https://doi.org/10.1016/s1381-5148(97)00096-5
Publikováno v:
KOBUNSHI RONBUNSHU. 55:423-429
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a77a75065055f8a8d3f558d6a03193b
https://doi.org/10.1295/koron.55.423
https://doi.org/10.1295/koron.55.423
Publikováno v:
KOBUNSHI RONBUNSHU. 55:415-422
ポリ (N-ビニル-2-ピロリドン) (PVP) に保護されたパラジウムナノ粒子 (PVP-Pdナノ粒子) をメタノール分散液中からトリメチルアンモニウム基を有するポリスチレンゲル (PSt-TA) に吸着させる
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72f167683f86ebc9a6885bb2b36f1945
https://doi.org/10.1295/koron.55.415
https://doi.org/10.1295/koron.55.415