Results 101 to 110 of about 2,075 (218)

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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The Effects of Internal Donors in Polypropene Ziegler-Natta Catalyst

, 2004
Tässä työssä tutkittiin erilaisten sisäisten donorien vaikutusta polypropeenin ominaisuuksiin käytettäessä Ziegler-Natta-katalyyttiä, joka valmistettiin Borealiksen aiemmin kehittämällä kaksifaasimenetelmällä.
Helkiö, Minna
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Engineering Nascent Disentangled Ultra-High-Molecular-Weight Polyethylene Based on Heterogeneous Catalytic Polymerization

Organics
Ultra-high-molecular-weight polyethylene (UHMWPE) is a pivotal material in engineering and biomedical applications due to its exceptional mechanical strength, wear resistance, and impact performance.
Lei Li
doaj   +1 more source

Modeling And Simulation Of Ethylene And 1-butene Copolymerization In Solution With Ziegler-natta Catalyst

, 2015
Polyethylene (PE) is a thermoplastic polymer widely used throughout the world due to its versatile physical and chemical properties; even in a single polymerization process, a wide variety of PE resins can be produced, depending on process operation ...
Pontes K.V., Embirucu M., Cavalcanti M.J.R., Maciel R.   +3 more
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The evolution of new generaton 'single-site' Ziegler-Natta polymerization catalysts [PDF]

, 2000
Since the discovery of stereospecific polymerization of olefins by K. Ziegler and G. Natta in 1955, tremendous developments have occurred in the area of designing polymerization catalysts.
Bajgur, Chandrasekhar S., Sivaram, S.
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Synthesis of internal electron donors for a novel Ziegler-Natta catalyst system

, 2008
The aim of this study was to develop a synthesis route for (+)-L-tartrate and (+/-)-malate derivatives. These were to function as internal electron donors in the synthesis of novel Ziegler-Natta polypropylene catalysts, developed by Borealis Polymers Oy.
Norrgård, Linda
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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  

Understanding the activity and stability of Lewis acid-modified Ziegler–Natta catalysts for the sustainable production of polypropylene

Journal of Taibah University for Science
Cleaner polymer production involves minimizing environmental impact by using efficient catalysts and eco-friendly synthesis methods. Identifying active and stable catalysts is essential.
Rafik Rajjak Shaikh, Yodsamol Sainu, Supareak Praserthdam, Piyasan Praserthdam   +3 more
doaj   +1 more source

Ziegler-Natta Catalysts

The Journal of the Society of Chemical Industry, Japan, 1967
Yoshinobu TAKEGAMI, Toshimitsu SUZUKI, Masaki FUJII   +2 more
openaire   +2 more sources

Machine learning-aided structure determination of the heterogeneous Ziegler-Natta catalyst: insight into donor adsorption [PDF]

Supervisor:谷池 俊明先端科学技術研究科修士 ...
da Silveira, João Marcos
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