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Titlebook: Organometallic Catalysts and Olefin Polymerization; Catalysts for a New Richard Blom,Arild Follestad,Martin Ystenes Conference proceedings

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發(fā)表于 2025-3-21 17:31:44 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
書目名稱Organometallic Catalysts and Olefin Polymerization
副標(biāo)題Catalysts for a New
編輯Richard Blom,Arild Follestad,Martin Ystenes
視頻videohttp://file.papertrans.cn/705/704505/704505.mp4
概述Contains the most important lectures of the New Millennium International Conference on "Organometallic Catalysts and Olefin Polymerization" (OCOP 2000), held June 18-22, 2000, in Oslo.Gives the state
圖書封面Titlebook: Organometallic Catalysts and Olefin Polymerization; Catalysts for a New  Richard Blom,Arild Follestad,Martin Ystenes Conference proceedings
描述"Catalysis is more art than science", probably all of you have heard and even used this expression. Whether it is true or not, it alludes to the experience that new catalysts are hard to find, and near impossible to predict. Hard work and a lifetime of experience is invaluable. However, a keen mind might give insight into where to search, but not necessarily about where to find the answers. Historically, "quantum leaps" have often arisen from serendipity - we all know the story about the nickel-contaminated reactor that triggered further research towards the first coordination catalyst for ethene polymerization. Taking advan- tage of this event, Karl Ziegler became the first chemist to earn both a Nobel prize and a fortune for the same invention. A broken NMR tube helped Walter Kaminsky discover the effect of high concentrations of methylaluminoxanes as co catalysts for metallocenes. When air reacted with the concentrated trim ethyl aluminum solution, sufficient amounts of methylaluminoxanes were formed, and the lazy catalyst dormant in the NMR tube suddenly became sensationally active. Ziegler and Kaminsky were lucky and had the genius needed to take advantage of their luck.
出版日期Conference proceedings 2001
關(guān)鍵詞Catalysts; Chlor; Ethen; Katalyse; Olefin; Pentad; Polymerisation; Propen; Synthese; catalysis; hydrogen; polym
版次1
doihttps://doi.org/10.1007/978-3-642-59465-6
isbn_softcover978-3-642-63987-6
isbn_ebook978-3-642-59465-6
copyrightSpringer-Verlag Berlin Heidelberg 2001
The information of publication is updating

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沙發(fā)
發(fā)表于 2025-3-21 21:42:38 | 只看該作者
板凳
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1-Hexene Polymerization Initiated by α-Diimine [N,N] Nickel Dibromide / MAO Catalytic Systems : Inflg different alkyl groups (R= Me, iPr, tBu) on the phenyl ligand. Methylaluminoxane (MAO) was used as an activator. Kinetic and UV/visible spectroscopic studies show the strong influence of the phenyl alkyl substituents of the diimine ligands onto the polymerization process as well as on the polyhexenes characteristics.
地板
發(fā)表于 2025-3-22 07:27:31 | 只看該作者
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UV/VIS Studies on the Activation of Zirconocene-Based Olefin-Polymerization Catalystsfer bands of these complexes. UV/VIS-spectra of Me.Si(Ind).ZrX. (X = Cl, Me) and Me.Si(2-Me-Benzind).ZrX. (X = Cl, Me) treated with MAO or, in the case of X = Me, with PhNMe.H. (F.C.).B. indicate that binuclear species of the type (Cp..ZrMe).(μ-Me)+ are not formed in the MAO-activated reaction syste
7#
發(fā)表于 2025-3-22 18:46:35 | 只看該作者
Activation of Siloxy-substituted Compounds and Homopolymerisation of Ethylene by Different Soluble Aene compounds. However, surprisingly few studies on different coactivators have been published. The most well known coactivator is methylalumoxane (MAO) discovered by Kaminsky. The second important activator systems for metallocenes are boron coactivators such as tris(pentafluorophenyl)borane. Some
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發(fā)表于 2025-3-22 21:25:47 | 只看該作者
Methylaluminoxane as a Cocatalyst for Olefin Polymerization. Structure, Reactivity and Cocatalytic Eolymerization experiments and density functional calculations. We have suggested a few Me.Al.O. cage structures, including a highly regul?r one with C. symmetry, which may serve as models for methylaluminoxane solutions. Three reactive methyl bridges, presumably the key elements in metallocene activ
9#
發(fā)表于 2025-3-23 02:00:21 | 只看該作者
Olefin Polymerization under High-pressure: Formation of Super-high Molecular Weight Polyolefinssts. Five types of .-metallocenes, R.E(?.-C.Me.).MCl. (R = Me, Et, vinyl; E = Si, Ge, M = Zr, Hf), and their heterobimetallic derivatives (?.-C.H.)Rh(rh((?.-CH.=CH).Si(?.-C.Me.).MCl. (M = Zr, Hf) were synthesized and used as catalyst precursors. These complexes exhibited remarkably enhanced catalyti
10#
發(fā)表于 2025-3-23 07:42:14 | 只看該作者
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