Results 101 to 110 of about 470,273 (164)

Structure-Performance Relationship in Ziegler-Natta Olefin Polymerization with Novel Core-Shell MgO/MgCl_2/TiCl_4 Catalysts [PDF]

, 2012
The impact of support architectures on the olefin polymerization performance of heterogeneous Ziegler–Natta catalysts has been scarcely understood due to the complexity of pore system and the fragmentation-induced structural changes during polymerization.
Taniike, Toshiaki, Terano, Minoru, Chammingkwan, Patchanee   +2 more
core   +1 more source

Uma revisão sobre polimerização de olefinas usando catalisadores Ziegler-Natta heterogêneos A survey on olefins polymerization using heterogeneous Ziegler-Natta catalysts

Polímeros, 2011
A produção em larga escala de materiais poliméricos de elevado interesse industrial, provenientes da polimerização estereoespecífica de olefinas, tornou-se possível depois do advento dos catalisadores Ziegler-Natta.
Fabricio Machado, José Carlos Pinto
doaj  

MgCl2-Supported Ziegler-Natta Catalysts; An NMR Perspective [PDF]

, 2018
Contains fulltext : 196533.pdf (Publisher’s version ) (Open Access)Ziegler-Natta catalysts (ZNCs) for the production of isotactic polypropylene are one of the most important industrial catalysts, yet they are still not properly ...
Blaakmeer, E.S.
core  

General aspects of activation-deactivation processes with Ziegler-Natta olefin polymerization catalysts

, 1992
International audienceActivation and deactivation are observed with all Ziegler-Natta catalysts in all polymerization processes. With the exception of active center destruction which can be observed for instance at high temperature, most of the apparent ...
Gomez, C., Dassaud, J.P., Guyot, A., Pasquet, V., Spitz, R.   +4 more
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Stereospecific Living Ziegler−Natta Polymerization of 1-Hexene

, 2016
Stereospecific Living Ziegler−Natta Polymerization of 1 ...
Kumudini C. Jayaratne (2443618), Lawrence R. Sita (1532260)   +1 more
core   +1 more source

Polimerização 1,4-cis de butadieno com sistemas catalíticos Ziegler-Natta à base de neodímio

Química Nova, 2004
Nowadays the catalyst systems based on neodymium are the ones most used in the high cis polybutadiene production. These systems contain a neodymium compound (catalyst), an alkylaluminium compound (cocatalyst) and a halogen compound (halogenating agent ...
Mello Ivana L., Coutinho Fernanda M. B., Soares Bluma G., Nunes Denise S. S., Costa Marcos A. S., Maria Luiz Claudio de Santa   +5 more
doaj  

New Insight into Titanium-Magnesium Ziegler-Natta Catalysts Using Photoluminescence Spectroscopy. [PDF]

Appl Spectrosc, 2020
Panchenko VN, Kostyukov AI, Shabalin AY, Paukshtis EA, Glazneva TS, Kazarian SG.   +5 more
europepmc   +1 more source

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
core  

Silanolytic Chain Transfer in Olefin Polymerization with Supported Single-Site Ziegler−Natta Catalysts

, 2016
Silanolytic Chain Transfer in Olefin Polymerization with Supported Single-Site Ziegler−Natta ...
Haruyuki Makio (1952404), Tobin J. Marks (1275348), Kwangmo Koo (3002130)   +2 more
core   +1 more source

Self-immobilizing precatalysts to polymerize a-olefins: norbornene-bridged zirconium ansa-metallocenes

, 2007
In the last twenty five years the role of the metallocenes in Ziegler-Natta homogeneous catalysis has become more and more relevant. Their single-centre nature and the availability of a large variety of ?-ligands structures has allowed the preparation of
Forlini F, Sacchi MC, Polo E
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