Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Takashi Monde"'
Publikováno v:
Chromatographia. 51:390-396
The simultaneous separation of polyethylene glycol and its derivatives such as the lauryl alcohol and lauric acid ethoxylate oligomers was carried out by reversed phase high performance liquid chromatography. Branched fluorinated silica gel columns c
Autor:
Takeo Konakahara, Jun-ichi Sugaya, Toshiro Kamiusuki, Takashi Monde, Shin-ichiro Okada, Nobuyuki Nakayama, Koji Yano Fujito Nemoto, Jun Furuhashi
Publikováno v:
Journal of Fluorine Chemistry. 101:39-43
Three types of branched-type polyfluoroalkylsilanes, trichloro[4,4-bis(trifluoromethyl)-5,5,6,6,7,7,7-heptafluoroheptyl] silane (D3CL3), monochlorodimethyl[4,4-bis(trifluoromethyl)-5,5,6,6,7,7,7-heptafluoroheptyl]silane (D3CL), triethoxy[4,4-bis(trif
Autor:
Takeo Konakahara, Toshinobu Yoko, Takashi Monde, Nobuyuki Nakayama, Toshiro Kamiusuki, Koji Yano
Publikováno v:
Journal of Colloid and Interface Science. 220:123-127
Glassesand silica-gel packings modified with fluorocarbon and hydrocarbon silylation agents were prepared to investigate the separation mechanism of a fluorocarbon bonded layer in reversed-phase high-performance liquid chromatography (RP-HPLC). On th
Publikováno v:
Journal of Chromatographic Science. 37:388-394
Fluorinated compounds are separated using fluorinated columns. The elution order depends on the number of fluorine atoms in the solutes. The addition of a masking agent of adsorption point to the mobile phase improves the separation of nitrogen-conta
Publikováno v:
Journal of Chromatography A. 852:475-485
The separation and characterization of octylphenol ethoxylate surfactants were carried out by reversed-phase high-performance liquid chromatography on branched fluorinated silica gel columns. For Triton X-100, simultaneous separation of octylphenol e
Publikováno v:
Chromatographia. 49:649-656
The conditions for reaction of the branched polyfluoroalkylsilane D3CL with silica gel have been examined. From elemental analyses and29Si NMR spectra it was found that the surface coverage and endcapping of D3CL-coated silica gel (Fluofix®) were th
Publikováno v:
Journal of Non-Crystalline Solids. 246:54-64
Composite coating films crack-free and with smooth surfaces have been prepared by the sol–gel technique using branched chain polyfluoroalkylsilane (triethoxy[4,4-bis(trifluoromethyl)-5,5,6,6,7,7,7-heptafluoroheptyl]silane) (D3Et) and tetraethoxysil
Autor:
Ben Zhong Tang, Kai C. Su, Huilin Chen, Hiroyuki Hiraoka, Shuk Mei Leung, J. S. Fu, Cheuk Fai Au, George K. Wong, Fujito Nemoto, Man Wah Fok, Han Peng, Wan Hong Poon, Xuan-zheng Wu, Nai-Teng Yu, Weikun Ge, Chunying Song, Takashi Monde
Publikováno v:
Macromolecules. 31:103-108
Fullerenation of polycarbonate (PC) is achieved by direct reaction of C60 with PC using AlCl3 as catalyst. Stirring a 1,1,2,2-tetrachloroethane solution of C60 and PC in the presence of AlCl3 under nitrogen at 140 °C for 24 h attached C60 to the PC
Autor:
Hiroyuki Fukube, Tadashi Ohkawa, Toshiro Kamiusuki, Kayo Mikumo, Takashi Monde, Tomoko Kuroda
Publikováno v:
Journal of Chromatography A. 722:273-280
A branched-chain, fluorocarbonaceous, silane-bonded silica gel material for high-performance liquid chromatography (HPLC) has been developed. New columns were found to have a high ability to recognize halogen-containing molecules and separate geometr
Autor:
Jun Furuhashi, Shin-ichiro Okada, Nobuyuki Nakayama, Takashi Monde, Jun-ichi Sugaya, Takeo Konakahara
Publikováno v:
NIPPON KAGAKU KAISHI. :1638-1646
1H,1H,2H,3H,3H-tridecafluoro(4,4-dimethyl-1-heptene)〔1〕へのシランHSiXY2〔2a;X=Y=Cl,2b;X=Cl,Y=CH3,2c;X=Y=OCH3〕によるヒドロシリル化反応をヘキサクロロ白金(N)酸存在下,常圧または封管中で行い,相当する分