Results 61 to 70 of about 5,159 (225)
Synthesis of Early Transition Metal Bisphenolate Complexes and Their Use as Olefin Polymerization Catalysts [PDF]
, 2009 Bisphenolate ligands with pyridine- and benzene-diyl linkers have been synthesized and metalated with group 4 and 5 transition metals. The solid-state structures of some of the group 4 complexes have been solved.
Bercaw, John E., Golisz, Suzanne R.
core +1 more source
Enantioselective synthesis and application to the allylic imidate rearrangement of amine-coordinated palladacycle catalysts of cobalt sandwich complexes [PDF]
, 2013 The reaction of (η5-(N,N-dimethylaminomethyl)cyclopentadien-yl)(η4-tetraphenylcyclobutadiene)cobalt with sodium tetrachloropalladate and (R)-N-acetylphenylalanine gave planar chiral palladacycle di-μ-chloridebis[(η5-(Sp)-2-(N,N-dimethylaminomethyl ...
Cassar, Doyle J. +5 more
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
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
Stereospecific Olefin Polymerization with Chiral Metallocene Catalysts [PDF]
Angewandte Chemie International Edition in English, 1995 AbstractCurrent studies on novel, metallocenebased catalysts for the polymerization of α‐olefins have far‐reaching implications for the development of new materials as well as for the understanding of basic reaction mechanisms responsible for the growth of a polymer chain at a catalyst center and the control of its stereoregularity.
Brintzinger, Hans-Herbert +4 more
openaire +2 more sources
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
European Journal of Organic Chemistry, EarlyView.Bridging the gap. Beyond deck functionalization, the ethylene bridges of [2.2]paracyclophanes offer a largely unexploited reactivity landscape. This review showcases strategies to functionalize these bridges and leverage them to build novel cyclophane architectures.
Rongyu Sun +3 more
wiley +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
Kinetic Analysis and Optimization of Long Chain Branched Propylene Polymerization System [PDF]
, 2014 A kinetic model has been proposed for a binary catalyst system with the available experimental data from the open literature, in which one catalyst produces polypropylene macromonomer, while the other catalyst attacks the macromonomers as side chains ...
Majumdar, S +2 more
core +2 more sources
Polymer Engineering &Science, Volume 66, Issue 5, Page 3100-3141, May 2026.This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan +5 more
wiley +1 more source