Results 1 to 10 of about 1,886 (220)
Stereospecific Olefin Polymerization with Chiral Metallocene Catalysts [PDF]
Angewandte Chemie International Edition in English, 1995 AbstractCurrent studies on novel, metallocenebased catalysts for the polymerization of α‐olefins have far‐reaching implications for the development of new materials as well as for the understanding of basic reaction mechanisms responsible for the growth of a polymer chain at a catalyst center and the control of its stereoregularity.
Brintzinger, Hans-Herbert +4 more
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Polímeros, 1998 Este trabalho apresenta uma discussão sobre aspectos gerais da nova tecnologia de síntese de polímeros com microestrutura e propriedades controladas, obtidos via sistema catalítico metaloceno/MAO.
Maria de Fátima V. Marques +3 more
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Six-coordinated half-metallocene catalyst for ethylene polymerization and its mechanism study
GiantThe demand for catalysts capable of enabling olefin polymerization at elevated temperatures to meet industrial requirements continues to grow. Among emerging candidates, novel six-coordinated half-metallocene catalysts, which combine the advantages of ...
Qian Li +10 more
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Química Nova, 2011 In situ ethylene polymerizations were performed using bis(cyclopentadiene)titanium dichloride supported on polyethersulfone as catalyst. The bis(cyclopentadiene)titanium dichloride supported on polyethersulfone catalyst activity estimated by ethylene ...
Z. V. P Murthy +2 more
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Scientific Reports, 2021 The contemporary search for new catalysts for olefin oligomerization and polymerization is based on the study of coordinating compounds and/or organometallic compounds as post-metallocene catalysts.
Jacek Malinowski +8 more
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Diyala Journal of Engineering Sciences, 2015 The optimal control policies for the syndiotactic polymerization of styrene over silica supported metallocene catalyst, have been determined using a multiobjective optimization technique.
S. R. Sultan
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Applying Pareto Design of GMDH-Type Neural Network for Solid-Liquid Equilibrium of Binary Systems (Isotactic Poly 1-Butene (1)-Organic Solvents (2)) [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2014 Isotactic poly (1-butene), ipbu-1, was synthesized by using a metallocene catalyst. The thermodynamic phase behavior of polymer–organic solvents systems is very important in every polymer application.
Hossein Ghanadzadeh +2 more
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The influence of long chain branches of LLDPE on processability and physical properties
Polímeros, 2015 Two polyethylene-based on single-site metallocene catalyst (mLLDPE) were selected to characterize the effect of long chain branching (LCB) on blown film processability, optical and mechanical properties.
Paula Cristina Dartora +2 more
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A cooperative model for metallocene catalyst activation by methylaluminoxane
Dalton TransactionsDFT study of rac-Me 2 Si(η 5 -C 9 H 6 ) 2 ZrMe 2 activation by methylaluminoxane (MAO) show ...
Scott Collins, Mikko Linnolahti
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Ethylene polymerization using MAO-free catalyst system consisting of alkylaluminum and zirconocene supported on acid-treated montmorillonite [PDF]
Polyolefins JournalMAO-free supported catalysts for ethylene polymerization were prepared by sequentially treating montmorillonites (MMTs) with R₃Al and then with zirconocene.
Hideki Kurokawa +2 more
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