Modeling intraparticle transports during propylene polymerizations using supported metallocene and dual function metallocene as catalysts: Single particle model [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2014 Two improved multigrain models (MGMs) for preparing homopolypropylene and long chain branched polypropylene via propylene polymerization using silica-supported metallocene or dual function metallocene as catalysts are presented in this paper ...
Li Hua-Rong, Che Liming, Luo Zheng-Hong
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Alternative Metallocenes in Floating Catalyst-CVD: Synthesis of Novel Carbon Nanostructures [PDF]
Nanotechnology, Science and ApplicationsSandra Lepak-Kuc,1,2 Agnieszka Lekawa-Raus,2 Malgorzata Jakubowska,1,2 Krzysztof Koziol3 1Faculty of Mechanical and Industrial Engineering, Warsaw University of Technology, Warsaw, Poland; 2Centre for Advanced Materials and Technologies (CEZAMAT), Warsaw
Lepak-Kuc S +3 more
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The effectiveness of using Metallocene fertilizers for the spray-dressing of winter wheat [PDF]
BIO Web of Conferences, 2021 This article presents the impact assessment results for the spay-dressing of different Metallocene compound fertilizers containing chelated microelements on the yield and quality of winter wheat seeds of the Kazanskaya 560 variety.
Vafin Ilshat, Safin Radik
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Influence of reaction conditions on catalytic properties of rac-Et(2-MeInd)2ZrMe2/(2,6-tBu2PhO-)AliBu2 in ethylene-propylene copolymerization [PDF]
Polyolefins Journal, 2023 Ethylene-propylene copolymerization reactions were carried out using rac-Et(2-MeInd)2ZrMe2 catalyst and (2,6-tBu2PhO-)AliBu2 as activator under varying reaction conditions.
Evgeny Faingol'd +8 more
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Substituent effect of Cp2TiCl2 catalyst for ethylene polymerization: A DFT study [PDF]
Polyolefins Journal, 2023 The substituents on cyclopentadienyl (Cp) can regulate the electronic effect and hindrance of the active center in the metallocene catalyst. This modification can greatly change the catalytic activity of the catalyst and affect some features of the ...
Kefeng Xie +5 more
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Molecules, 2019 Crystalline polar metallocenes are potentially useful active materials as piezoelectrics, ferroelectrics, and multiferroics. Within density functional theory (DFT), we computed structural properties, energy differences for various phases, molecular configurations, and magnetic states, computed polarizations for different polar crystal structures, and ...
Haiwu Zhang, B.Yu. Yavorsky, R.E. Cohen
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Comparison of Ethylene/1-Hexene Copolymers Microstructures Synthesized by Homogeneous and Heterogeneous Metallocene Catalysts [PDF]
علوم و تکنولوژی پلیمر, 2013 The substituted (bis-2-PhIndZrCl2) and non-substituted (bis-IndZrCl2) indenylbased metallocene catalysts were synthesized and used in homogenous and heterogeneous forms for copolymerization of ethylene and 1-hexene.
Saeid Ahmadjo
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Metallocene-Filled Single-Walled Carbon Nanotube Hybrids
Nanomaterials, 2023 In this paper, the growth mechanism, structure, growth processes, growth kinetics, and optical, vibronic and electronic properties of metallocene-filled single-walled carbon nanotubes (SWCNTs) are considered.
Marianna V. Kharlamova +1 more
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A Study on the Effect of Catalyst Types on Microstructure of Ethylene/1-Hexene Copolymer by Thermal Fractionation [PDF]
علوم و تکنولوژی پلیمر, 2015 Olefinic copolymers of ethylene/1-hexene were synthesized by three main types of supported catalysts, including Philips, Ziegler-Natta and metallocene catalysts, and the specific microstructural features delivered by each class of the catalysts were ...
Seyed Mohammad Mehdi Mortazavi
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Inorganics, 2022 The salt metathesis reaction between one equivalent of SmI2(THF)2 and two equivalents of K(C5Me4H) in THF afforded single crystals of the unusual, toluene-soluble, and asymmetric bimetallic Sm(II)/Sm(II) complex, (C5Me4H)2SmII(μ-η3:η5-C5Me4H)SmII(C5Me4H)(
Joseph Q. Nguyen +2 more
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