Results 51 to 60 of about 1,886 (220)
State‐of‐the‐Art and Synthetic Challenges for Hydrosilane Production
Chemistry – A European Journal, EarlyView.The synthesis of hydrosilanes is currently energy intensive and their recycling is not considered. However, these compounds are important in many industrial fields but also for the valorization of oxygenated waste, towards a circular economy. This review compares the available synthetic routes and highlights the remaining challenges for the production ...
Gabriel Durin +3 more
wiley +1 more source
, 2019 The economy of the metallocene catalyst system in olefin polymerization depends more on the cost of methylaluminoxane (MAO) cocatalyst rather than on the catalyst cost since high ratio of cocatalyst to catalyst is required to have sufficient activity ...
Lee, BY, Park, TH, Oh, JS
core +1 more source
Molecules, 2011 In the present study, copolymerization of ethylene and 1-hexene was conducted with a series of ansa-fluorenylamidodimethyltitanium complexes, including [t-BuNSiMe2Flu]TiMe2 (complex 1), [cyclododecylNSiMe2Flu]TiMe2 (complex 2) and [t-BuNSiMe2(2,7-t ...
Bunjerd Jongsomjit +5 more
doaj +1 more source
Chemistry – A European Journal, EarlyView.Homo‐ and heterodinuclear group 4 metallocene complexes of the type [(Cp2M)2(μ‐Me)(μ‐C2R)] (M = Ti, Zr) are active catalysts for the polymerization of ethylene in the presence of aluminium‐free activators. The catalytically active species are proposed to have dinuclear character and depending on the type of activator, unique reactivity was observed ...
Hanan Al Hamwi +8 more
wiley +1 more source
ANSA-bridged and binuclear metallocene compounds of zirconium and hafnium
, 1994 This thesis describes the synthesis and characterisation of new mononuclear and binuclear zirconium and hafnium compounds containing ansa-bridged ligands.
Diamond, Gary M.
core +1 more source
Polymer Testing, 2021 In this work, nanocomposites, based on linear low‐density polyethylene (mLLDPE), produced by metallocene catalyst, were prepared and experimentally investigated by means of thermomechanical-electrical properties and Raman spectroscopy.
Ilias Charitos +7 more
doaj +1 more source
Heterogenized Methylaluminoxane and Isobutylaluminoxane as activators for metallocene catalysts [PDF]
Kinetics and Catalysis, 2006 Heterogenized alkylaluminoxanes prepared in situ on the montmorillonite (MMT) surface by the partial hydrolysis of AIR3 with water of the support are effective activators for metallocenes. The thermal destruction of isobutylaluminoxane molecules in the MMT-H2O/Al(i-Bu)3 system has been studied by the temperature-programmed desorption method coupled ...
L. A. Novokshonova +8 more
openaire +1 more source
Redox‐Active Bisphosphines Based on a W(II)‐Propargyl Complex Backbone
European Journal of Inorganic Chemistry, EarlyView.Three bisphosphine ligands based on tungsten(II) propargyl‐type alkyne complexes were synthesized and characterized. The methanolate derivative was used as a metalla‐ligand for the preparation of a binuclear bisphosphine‐κ2‐PdCl2 complex. In both cases, IR spectroelectrochemistry (IR‐SEC) measurements revealed a successive process following oxidation ...
Friederike M. Hamann +7 more
wiley +1 more source
Supported Ionic Metallocene Polymerization Catalysts
, 2016 Supported Ionic Metallocene Polymerization ...
Gregory G. Hlatky (3058749) +1 more
core +1 more source
Polypropylene obtained through zeolite supported catalysts
Polímeros, 2004 Propylene polymerizations were carried out with f2C(Flu)(Cp)ZrCl2 and SiMe2(Ind)2ZrCl2 catalysts supported on silica, zeolite sodic mordenite (NaM) and acid mordenite (HM).
Queli C. Bastos +1 more
doaj +1 more source