A Silicon-Bridged Bis(substituted Cp) Yttrium Complex [PDF]
, 1992 rac-Bis(tetrahydrofuran)lithium [bis(2-trimethylsilyl-4-tert-butyl-η^5-cyclopentadienyl)dimethylsilane] dichloroyttrate, [Li(C_4H_80)_2][Y(C_(26)H_(48)-Si_3)Cl_2], M_r= 755.87, triclinic, Pl, ɑ = 13.110 (8), b = 17.163 (15), c = 20.623 (14) Å, ɑ= 104.02 (
Bercaw, John E. +3 more
core +1 more source
Human flaws and logical tools in engineering
The Canadian Journal of Chemical Engineering, Volume 103, Issue 8, Page 3512-3520, August 2025.Abstract This paper explores the limitations of human cognition, especially in engineering research, emphasizing the need for mathematical models and methods to guide decision‐making and theory validation. While human cognition excels in certain tasks, it is prone to biases that can distort our understanding.
André C. R. Martins
wiley +1 more source
Silicoaluminates as “support activator” systems in olefin polymerization processes [PDF]
, 2010 In this work we report the polymerization behaviour of natural clays (montmorillonites, MMT) as activating supports. These materials have been modified by treatment with different aluminium compounds in order to obtain enriched aluminium clays and to ...
Alba Carranza, María Dolores +4 more
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Threshold effect of residual catalyst on volume resistivity of polypropylene polymers
High Voltage, Volume 10, Issue 4, Page 939-952, August 2025.Abstract Polypropylene (PP) has become the focus of research and development of recyclable polymer dielectric materials because of its excellent electrical and thermal properties. The residual catalyst after PP polymerisation is the main part of ash. It was found that ash particles are uniformly dispersed in the PP matrix.
Xinhua Dong +11 more
wiley +1 more source
Carbon-hydrogen and carbon-carbon bond activation with highly electrophilic transition metal complexes [PDF]
, 1990 Highly electron deficient scandocene derivatives of the types (η^5-C_5Me_5)_2ScR, {(η^5-C_5Me_4)_2SiMe_2}ScR and {(η^5-C_5H_3CMe_3)_2SiMe_2}ScR catalyze the polymerization of ethylene, the head-to-tail dimerization of α olefins, the cyclization of α,ω ...
Bercaw, John E.
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Carbon Dioxide, a Solvent and Synthon for Green Chemistry [PDF]
, 2005 Carbon dioxide is a renewable resource of carbon when we consider the reuse of existing CO2 as a carbon source for producing chemicals. The development of new applications is of major interest from the point of view of carbon dioxide sequestration and ...
Ballivet-Tkatchenko, D +2 more
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Reactions of (Arylimido)vanadium(V)–Trialkyl Complexes with Phenols: Effects of Arylimido Ligands and Phenols for Formation of the Vanadium Phenoxides [PDF]
, 2019 Reactions of a series of (arylimido)vanadium(V) trialkyl complexes, V(NAr′)(CH_2SiMe_3)_3 (Ar′ = C_6H_5, 2-MeC_6H_4, 2,6-Me_2C_6H_3, 2,6-Cl_2C_6H_3), with various phenols (ArOH, Ar = 2,6-F_2C_6H_3, 2,6-Cl_2C_6H_3, 2,6-Me_2C_6H_3, 2,6-^iPr_2C_6H_3, 2 ...
Hayashibara, Hitomi +2 more
core +4 more sources
The effects of a new aminosilane external donor on propylene polymerization with MgCl2supported Ziegler-Natta catalyst [PDF]
, 2023 Hefei Chang +4 more
openalex +1 more source
Surface compounds of transition metals. - Part XIII : Nature of the polymer to chromium bond in Phillips catalysts [PDF]
, 1975 Two independent experiments show that in polymerization catalysts of the Phillips type the growing hydrocarbon chain is attached to the metal via a ...
Krauss, H. L., Schmidt, Helmut K.
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Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends [PDF]
, 2005 The effect of electron beam irradiation on blends of ethylene-octene copolymer (EOC) and polypropylene (PP) with and without trimethylolpropane triacrylate (TMPTA) at various ratios was studied.
Raj Kumar, Harris C.
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