Results 41 to 50 of about 124,440 (73)

Historical and Philosophical Remarks on Ziegler-Natta Catalysts

, 1999
Part 1 outlines the complex, parallel historical evolution of Ziegler-Natta catalysts and related problems. In Part 2, as a general method of inquiry, chemical language and discourse are analyzed, at first to clarify chemists’ epistemic views and the ...
HYLE Publications, Luigi Cerruti
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Dimerization of 1-butene via zirconium-based Ziegler-Natta catalyst

, 2000
A zirconium-based Ziegler-Natta catalytic system has been tested in the dimerization of 1-butene. It was found that the concentration of Et2AlCl, Ph3P and PhONa as well as the reaction temperature had great influences on the activity and selectivity of ...
Han, XW, Zhang, WP, He, R, Bao, XH, Li, C   +4 more
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Organic Nanoparticles as Fragmentable Support for Ziegler-Natta Catalysts

, 2015
A fragmentable support material for Ziegler-Natta catalysts is presented based on micrometer-sized aggregates of polystyrene nanoparticles. Hydroxyl anchoring groups are introduced by copolymerization of hydroxymethylstyrene in emulsion process to ...
Sven Nietzel, Alsaygh, A., Gerhard Fink, Joe, D., Nietzel, S., Frank Schellenberger, Schellenberger, F., Muellen, K., Abdulhamid A. Alsaygh, Joseph W. Krumpfer, Krumpfer, J., Markus Klapper, Fink, G., Daejune Joe, Klaus Müllen, Klapper, M., Müllen, K.   +16 more
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Living Ziegler−Natta Cyclopolymerization of Nonconjugated Dienes:  New Classes of Microphase-Separated Polyolefin Block Copolymers via a Tandem Polymerization/Cyclopolymerization Strategy

, 2016
Living Ziegler−Natta Cyclopolymerization of Nonconjugated Dienes:  New Classes of Microphase-Separated Polyolefin Block Copolymers via a Tandem Polymerization/Cyclopolymerization ...
Kumudini C. Jayaratne (2443618), Lawrence R. Sita (1532260), David A. Henningsen (2982693), Richard J. Keaton (2504707)   +3 more
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Synthesis of polyethylene/exfoliated MoS₂ nanocomposites by in situ exfoliation polymerization using Ziegler–Natta catalyst intercalated MoS₂

, 2017
A new synthetic route for polyethylene (PE)/exfoliated MoS2 (EMoS2) nanocomposites using novel Ziegler–Natta catalyst intercalated MoS2 was designed.
He-Xin Zhang, Keun-Byoung Yoon, Hao Zhang   +2 more
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Generation of Homogeneous (sp³-C₁)-Bridged Cp/Amido and Cp/Phosphido Group 4 Metal Ziegler−Natta Catalyst Systems

, 2016
Generation of Homogeneous (sp3-C1)-Bridged Cp/Amido and Cp/Phosphido Group 4 Metal Ziegler−Natta Catalyst ...
Klaus Kunz (2720305), Gerhard Erker (1443580), Steve Döring (2720311), Roland Fröhlich (2430502), Gerald Kehr (1443583)   +4 more
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CATALIZADORES Ziegler-Natta utilizados para polimerizar propileno y etileno [PDF]

, 1987
A 35 años de su descubrimiento, la polimerización del propileno y etileno es hoy en día uno de los mayores procesos industriales. Se comienza con una breve reseña histórica, para luego resaltar las estructuras, propiedades y usos del polipropileno y ...
Castro, Carlos A., Eguren, Liliana, Korswagen, Richard P   +2 more
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Direct Observation of the Structural Isomerization of a Cationic Group 4 Ziegler−Natta Insertion Product

, 2016
An experimental model that allows for direct observation of a structural isomerization that is relevant to the group 4 metal-mediated Ziegler−Natta polymerization of α-olefins is presented.
Lawrence R. Sita (1532260), Richard J. Keaton (2504707)   +1 more
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Dramatic Enhancement of Activities for Living Ziegler−Natta Polymerizations Mediated by “Exposed” Zirconium Acetamidinate Initiators:  The Isospecific Living Polymerization of Vinylcyclohexane

, 2016
Dramatic Enhancement of Activities for Living Ziegler−Natta Polymerizations Mediated by “Exposed” Zirconium Acetamidinate Initiators:  The Isospecific Living Polymerization of ...
Kumudini C. Jayaratne (2443618), Lisa A. Koterwas (2984184), Lawrence R. Sita (1532260), David A. Henningsen (2982693), Richard J. Keaton (2504707)   +4 more
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Quality control for Ziegler-Natta catalysis via spectroscopic fingerprinting [PDF]

, 2018
Commercial olefin polymerization catalysts are typically produced at a manufacturing site before transport to production facilities for storage and eventual use.
Vantomme, Aurélien, Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis, Pletcher, Paul, Welle, Alexandre, Weckhuysen, Bert M.   +5 more
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