Results 81 to 90 of about 20,042 (215)
Polymer Engineering &Science, EarlyView.A kinetic model comprising both propagation and deactivation functions was developed for metallocene‐catalyzed ethylene polymerization in a batch reactor. The model predicted polymer yields very close to the experimental ones. The polymer molecular weight increased with ethylene pressure and decreased with temperature.
Narendra Singh Choudhary +2 more
wiley +1 more source
A novel n‐type dimer dopant for semiconducting polymers
Polymer International, EarlyView.A novel molecular n‐type dopant (1) with superior capacity to dope conjugated polymers is introduced. After charge transfer the product (2) remains in the polymer. Abstract Efficient and stable doping of organic semiconductors is crucial for adjusting their electrical properties.
Andreas Opitz +4 more
wiley +1 more source
Key intermediates in metallocene-and post-metallocene-catalyzed polymerization
, 2007 The structures of intermediates formed upon the activation by methylaluminoxane (MAO) of a wide range of metallocene and post-metallocene catalysts of olefin polymerization were studied by C-13, H-1, and F-19 NMR. For all metallocenes considered (L2ZrCl2
Semikolenova, N. V. +4 more
core +1 more source
Synthesis and Pd(II) Complexes of an Unsymmetric and Flexible Ferrocene Bisphosphine
Zeitschrift für anorganische und allgemeine Chemie, EarlyView.Insertion of flexible spacers into the pivotal C(ferrocene)P bonds in dppf increases flexibility of the resulting homologated ligands and lowers their tendency to coordinate as P,P′‐chelating ligands. To expand the family of flexible homologated analogs of 1,1′‐bis(diphenylphosphino)ferrocene, the unsymmetric bisphosphine 1‐(diphenylphosphino)‐1′‐[2 ...
Jakub Antala +3 more
wiley +1 more source
An Integrated AHP-PROMETHEE Method for Selecting the most Suitable Ethylene Propylene Diene Termonomer [PDF]
Journal of Petroleum Science and Technology, 2016 This paper considers the problem of selecting the most appropriate ethylene propylene diene monomer (EPDM), which is a polyolefin with a variety of usages in different areas.
Ali Sibevei +3 more
doaj +1 more source
The influence of long chain branches of LLDPE on processability and physical properties
Polímeros, 2015 Two polyethylene-based on single-site metallocene catalyst (mLLDPE) were selected to characterize the effect of long chain branching (LCB) on blown film processability, optical and mechanical properties.
Paula Cristina Dartora +2 more
doaj +1 more source
Nanomaterials, 2018 The geometrical, electronic structure, and magnetic properties of the half-metallocene of M (M = Fe, Co, Ni) adsorbed on Stone–Wales defected graphene (SWG) were studied using the density functional theory (DFT), aiming to tune the band structure of SWG.
Kefeng Xie +4 more
semanticscholar +1 more source
Synthesis, Updated Characterization, and Reactivity of Low‐Valent Titanocene Complexes
European Journal of Inorganic Chemistry, Volume 29, Issue 30, 27 October 2026.Syntheses and characterizations are provided for a series of low‐valent titanocene complexes including halotitanocene(III) dimers, [Cp2Ti(κ2‐DME)][BAr4] cations, and heterobimetallic [Cp2Ti(μ‐Cl)2AlR2]. Additionally, a monomeric titanacyclopropene complex featuring a pendent phosphine was prepared, and C─F bond activation upon reduction of [Cp{η5:κ2F2 ...
Griffin J. LaChapelle +2 more
wiley +1 more source
, 2001 Results obtained during the tenure of a BMBF-supported collaborative research project, comprising the parts "Exploration of new ansa-metallocene complexes", "Commercially applicable metallocene syntheses", "Metallocene catalysts on solid supports" and ...
Schweier, Günther +1 more
core +1 more source
Acta Crystallographica Section E: Crystallographic Communications, 2019 1′-Aminocobaltocenium-1-carboxylic acid chloride, [Co(C5H6N)(C6H5O2)]Cl·H2O, (3), and its azo derivative 1′-[2-(1-amino-2,6-dimethylphenyl)diazen-1-yl]cobaltocenium-1-carboxylic acid hexafluoridophosphate, [Co(C13H14N3)(C6H5O2)]PF6·H2O (5) were obtained ...
Markus Jochriem +3 more
doaj +1 more source