Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Masahide Murata"'
Autor:
Masayoshi Saito, Hiroshi Kashimura, Takuo Kataoka, Masahide Murata, Yusuke Sakuda, Hiroyuki Yamada, Hideyuki Takahashi
Publikováno v:
Polyolefins Journal, Vol 11, Iss 2, Pp 115-124 (2024)
This report is on the characterization of active Ti center in heterogeneous Ziegler-Natta catalysts with Soft X-ray Emission Spectrometer (SXES). Since titanium in the catalyst has various chemical bonds, it is important to grasp the chemical bond st
Externí odkaz:
https://doaj.org/article/ea546f98fc1a4d3ba26697c205109c11
Publikováno v:
Polyolefins Journal, Vol 9, Iss 2, Pp 117-127 (2022)
Ziegler-Natta catalyst for propylene polymerization, which TiCl4 and di-alkyl phthalate were supported on MgCl2, was analyzed by solid state 13C NMR. It was confirmed that the spin-lattice relaxation time (“relaxation time” hereafter) of carbonyl
Externí odkaz:
https://doaj.org/article/d4b40a1c3bbf4f7b899b2d5a924588a1
Publikováno v:
Polyolefins Journal, Vol 3, Iss 2, Pp 79-92 (2016)
Spray dry granulation of clay minerals was studied to obtain clay mineral base support material for metallocene supported olefin polymerization catalysts. The morphology of the granules was strongly influenced by the nature of the clay mineral itself
Externí odkaz:
https://doaj.org/article/2f43bbb4e0bf40ab9d92cb8222ff3617
Autor:
Masayoshi Saito, Hiroshi Kashimura, Takuo Kataoka, Masahide Murata, Yusuke Sakuda, Hiroyuki Yamada, Hideyuki Takahashi
Publikováno v:
Polyolefins Journal; May2024, Vol. 11 Issue 2, p115-124, 10p
Publikováno v:
Bulletin of the Chemical Society of Japan. 95:367-373
Publikováno v:
Polyolefins Journal; Jul2022, Vol. 9 Issue 2, p117-127, 11p
Autor:
Hideshi Uchino, Masahide Murata, Takao Tayano, Shinichi Kitade, Shigeki Ohta, Takehiro Sagae, Hideshi Satake
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 420:228-236
In this study, we investigated the location of the active sites of montmorillonite-supported metallocene catalysts used for propylene polymerization. X-ray fluorescence, Hammett titration, and scanning transmission electron microscopy/energy-dispersi
Autor:
Hoang The Ban, Toshio Kase, Masanao Kawabe, Akira Miyazawa, Takeshi Ishihara, Hideaki Hagihara, Yasuo Tsunogae, Masahide Murata, Takeshi Shiono
Publikováno v:
Macromolecules. 39:171-176
Crystalline styrene−butadiene−styrene (SBS) triblock copolymers consisting of elastic cis-polybutadiene (cis-PB) chemically bonded with crystallizable syndiotactic polystyrene (syn-PS) were synthesized through a stereospecific sequential triblock
Autor:
Kenji Tsuchihara, Takeshi Shiono, Kazuhiko Takeuchi, Hideaki Hagihara, Hiroyuki Ozaki, Masahide Murata
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 42:52-58
Copolymerization of olefins (ethylene and propylene) and 5-hexen-1-ol pretreated with alkylaluminum was performed using [dimethysilylbis(9-fluorenyl)]zirconium dichloride/methylaluminoxane as the catalyst. The copolymerization required extra addition
Publikováno v:
ResearcherID
Leakage current distribution in ultrathin SiO 2 film formed on (1 1 1) Si surface with step/terrace structures was investigated using atomic force microscopy with a conductive cantilever. Regions with higher leakage current of 1.0-nm-thick SiO 2 were