Advances in High-Temperature Non-Metallocene Catalysts for Polyolefin Elastomers. [PDF]
Materials (Basel)Despite the great successes achieved by metallocene catalysts in high-value-added polyolefin elastomer, the challenging preparation conditions and undesirable high-temperature molecular weight capabilities have compromised the efficiency and cost of ...
Wang C, Li X, Chen S, Shan T.
europepmc +2 more sources
A Dysprosium Metallocene Single-Molecule Magnet Functioning at the Axial Limit.
Angewandte Chemie, 2017 ion of a chloride ligand from the dysprosium metallocene [(Cpttt )2 DyCl] (1Dy Cpttt =1,2,4-tri(tert-butyl)cyclopentadienide) by the triethylsilylium cation produces the first base-free rare-earth metallocenium cation [(Cpttt )2 Dy]+ (2Dy ) as a salt of ...
Fu-Sheng Guo +5 more
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Experimental and Computational Studies on a Base‐Free Terminal Uranium Phosphinidene Metallocene
Chemistry, 2020 The first stable base‐free terminal uranium phosphinidene metallocene is presented; and its structure and reactivity have been studied in detail and compared to that of the corresponding thorium derivative.
Deqiang Wang +4 more
semanticscholar +1 more source
Synthesis and Application of Bis[1,2-(4-aryl-2-alkyl-1H- inden-1-yl)]Ethane as an Efficient`Ligand for Preparation of Olefin Polymerization Catalysts [PDF]
Journal of Sciences, Islamic Republic of Iran, 2019 In this study, a class of bis-1,2-(4-aryl-2-alkyl-1H- inden-1-yl) ethane was synthesized and characterized by spectroscopic methods such as 1HNMR, 13CNMR, melting point and FTIR.
v. Lotfi +3 more
doaj +1 more source
Kinetic and microstructural studies of Cp2ZrCl2 and Cp2HfCl2-catalyzed oligomerization of higher α-olefins in mPAO oil base stocks production [PDF]
Polyolefins Journal, 2021 Herein a quenched-flow kinetic technique was applied to calculate the rate constants of 1-hexene and 1-octene oligomerization catalyzed by the Cp2ZrCl2 and Cp2HfCl2/MAO catalyst systems, and subsequently a mechanism for the higher α-olefin ...
Ahad Hanifpour +4 more
doaj +1 more source
Synthesis and Magnetism of Neutral, Linear Metallocene Complexes of Terbium(II) and Dysprosium(II).
Journal of the American Chemical Society, 2019 The divalent metallocene complexes Ln(CpiPr5)2 (Ln = Tb, Dy) were synthesized through the KC8 reduction of Ln(CpiPr5)2I intermediates and represent the first examples of neutral, linear metallocenes for these elements.
C. Gould +6 more
semanticscholar +1 more source
Molecules, 2021 The copolymerization of ethylene‒diene conjugates (butadiene (BD), isoprene (IP) and nonconjugates (5-ethylidene-2-norbornene (ENB), vinyl norbornene VNB, 4-vinylcyclohexene (VCH) and 1, 4-hexadiene (HD)), and terpolymerization of ethylene-propylene ...
Amjad Ali +9 more
doaj +1 more source
Metallocene-Terminated Allylium Salts: The Effect of End Group on Localization in Polymethines
, 2016 A range of 1,3-di(metallocenyl)allylium salts [Mc(CH)3Mc‘]+[X]- {Mc, Mc‘ = ferrocenyl (Fc), 2,3,4,5,1‘,2‘,3‘,4‘-octamethylferrocen-1-yl (Fc‘ ‘), ruthenocenyl (Rc); X = BF4, PF6} was synthesized by reaction of (2-lithiovinyl)metallocenes with ...
Lawrence M. Henling (1476565) +6 more
core +2 more sources
Acta Crystallographica Section E: Crystallographic Communications, 2020 Bis[η5-(tert-butoxycarbonyl)cyclopentadienyl]dichloridotitanium(IV), [Ti(C10H13O2)2Cl2], was synthesized from LiCpCOOt-Bu using TiCl4, and was characterized by single-crystal X-ray diffraction and 1H NMR spectroscopy.
Jackson S. McCarthy +3 more
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Nanomaterials, 2021 We have investigated the effects of temperature, diameter and metal catalyst type on the growth of inner nanotubes inside metallocene-filled single-walled carbon nanotubes (SWCNTs).
Marianna V. Kharlamova +1 more
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