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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Synthesis of Metallocene Catalyst for Terpolymerization of Ethylene, Propylene and Diene [PDF]
علوم و تکنولوژی پلیمر, 2014 The bis(indenyl) zirconium dichloride catalyst was synthesized by a modified method at room temperature. Terpolymerization of ethylene, propylene and diene monomers were carried out using this metallocene catalyst under different conditions of different ...
S.M.M. Mortazavi +4 more
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Bulletin of Chemical Reaction Engineering & Catalysis, 2020 Polyethylene-cellulose biocomposites were synthesized here via the ethylene polymerization with metallocene as a catalyst along with methylaluminoxane (MAO) as a cocatalyst.
Praonapa Tumawong +2 more
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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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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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Immobilizing metallocene by solid polymethylaluminoxane “sMAO” for slurry-phase ethylene-1-hexene copolymerization [PDF]
MATEC Web of Conferences, 2022 In the field of olefin catalytic polymerization, metallocene catalysts show higher activity than traditional Ziegler-Natta catalysts. In this study, benzoic acid catalyzed the controlled hydrolysis of trimethylaluminum (TMA) to methylaluminoxane (MAO ...
Wu Chaofan +5 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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Study of Ziegler-Natta/(2-PhInd)2ZrCl2 hybrid catalysts performance in slurry propylene polymerization [PDF]
Polyolefins Journal, 2015 Several types of hybrid catalysts are made through mixing of 4th generation Ziegler-Natta (ZN) and (2-PhInd)2ZrCl2 metallocene catalysts using triethylaluminum (TEA) as coupling agent.
Gholam-Reza Nejabat +7 more
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Polymerization of sterically hindered a-olefins with single-site group 4 metal catalyst precursors [PDF]
Polyolefins Journal, 2016 A variety of group 4 metal catalytic systems (C2-symmetric {EBTHI}-, {SBI}-type zirconocene complexes (C2-1–4); C1-symmetric (C1-5–8) and Cs-symmetric (Cs-9) {Cp/Flu}-type zirconocene complexes; Cp*2ZrCl2 (Cp* 2-10)), half-metallocene complexes (CpTiCl3,
Gabriel Theurkauff +6 more
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Copolymerization of ethylene with norbornene by using metallocene/TIBA/B(C6F5)3 system [PDF]
Polyolefins Journal, 2023 Cyclic olefin copolymer is a type of high-performance polyolefin material, which is prepared by using a single-site catalyst in solution polymerization. The common activator of this system is alkyl aluminoxane or organic boron/aluminum system.
Wei Wang +7 more
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