Zobrazeno 1 - 10 of 45 pro vyhledávání: '"Aurélien Vantomme"'
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Akademický článek
Polymerization of sterically hindered a-olefins with single-site group 4 metal catalyst precursors
Autor: Gabriel Theurkauff, Katty Den Dauw, Olivier Miserque, Aurélien Vantomme, Jean-Michel Brusson, Jean-François Carpentier, Evgeny Kirillov
Publikováno v: Polyolefins Journal, Vol 4, Iss 1, Pp 123-136 (2016)
A variety of group 4 metal catalytic systems (C2-symmetric {EBTHI}-, {SBI}-type zirconocene complexes (C2-1–4); C1-symmetric (C1-5–8) and Cs-symmetric (Cs-9) {Cp/Flu}-type zirconocene complexes; Cp*2ZrCl2 (Cp* 2-10)), half-metallocene complexes (
Externí odkaz: https://doaj.org/article/b3a8d59266574388b64f1e7c3d4dd58b
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2
Early-stage particle fragmentation behavior of a commercial silica-supported metallocene catalyst
Autor: Alexandre Welle, Nikolaos Nikolopoulos, Bert M. Weckhuysen, Aurélien Vantomme, Silvia Zanoni
Publikováno v: Catalysis Science & Technology. 11:5335-5348
Efficient fragmentation of catalyst particles during the polymerization of olefins is a necessary process to maintain catalyst activity and obtain discrete polymer particles with ideal density and morphology. Collecting experimental evidence on the f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0db9fa2f122b1547e31b7841b2a119fe
https://doi.org/10.1039/d1cy00930c
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3
Paraffin-Inert Atmospheric Solid Analysis Probe: A Fast and Easy Approach To Characterize Extremely Air-Sensitive Organometallic Complexes by Mass Spectrometry
Autor: Marie Hubert-Roux, Thierry Chavagnan, Alexandre Welle, Ahmad Naim, Aurélien Vantomme, Evgueni Kirillov, Pierre Giusti, Mathilde Farenc, Virginie Cirriez, Carlos Afonso, Jean-François Carpentier
Publikováno v: Analytical Chemistry
Analytical Chemistry, 2020, 92 (4), pp.2922-2925. ⟨10.1021/acs.analchem.9b04478⟩
Analytical Chemistry, American Chemical Society, 2020, 92 (4), pp.2922-2925. ⟨10.1021/acs.analchem.9b04478⟩
International audience; Rational characterization of most organometallic compounds is hampered by their high reactivity, in particular, toward oxygen and water. Mass spectrometry experiments require physical introduction of the sample in the ionizati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::228ed23a7c88d084e7d973a421d3394b
https://doi.org/10.1021/acs.analchem.9b04478
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4
Propylene Polymerization and Deactivation Processes with Isoselective {Cp/Flu} Zirconocene Catalysts
Autor: Thierry Roisnel, Xavier Desert, Aurélien Vantomme, Evgueni Kirillov, Alexandre Welle, Jean-François Carpentier, Vincent Dorcet, Katty Den Dauw
Publikováno v: Catalysts
Volume 11
Issue 8
Catalysts, MDPI, 2021, 11 (8), pp.959. ⟨10.3390/catal11080959⟩
Catalysts, 2021, 11 (8), pp.959. ⟨10.3390/catal11080959⟩
Catalysts, Vol 11, Iss 959, p 959 (2021)
Industrially relevant single-site precatalysts used to produce isotactic polypropylene (iPP) include C2-symmetric {SBI} and C1-symmetric {Cp/Flu} complexes of group 4 metals. While the latter can produce iPPs with a higher degree of isotacticity, the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c9276d96b5ae204b3f9fa3b5217cb5e
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5
Trinuclear tris(ansa-metallocene) complexes of zirconium and hafnium for olefin polymerization
Autor: Jean-Michel Brusson, Lars N. Jende, Jean-François Carpentier, Alexandre Welle, Aurélien Vantomme, Evgueni Kirillov
Publikováno v: Journal of Organometallic Chemistry
Journal of Organometallic Chemistry, Elsevier, 2018, 878, pp.19-29. ⟨10.1016/j.jorganchem.2018.09.028⟩
Journal of Organometallic Chemistry, 2018, 878, pp.19-29. ⟨10.1016/j.jorganchem.2018.09.028⟩
International audience; New platforms for trinuclear complexes, 1,3,5-tris(fluoren-2-yl-R)benzene (Ph{2-FluRH}3; R = H (2a), 6-tBu (2b), 7-tBu (2c), Tet (2d) (Tet = 2,2,5,5-tetramethyl-tetrahydrobenzofluorene), were synthesized via an acid-catalyzed
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88d919b3825d5e2f0cadb4d40e2d44da
https://doi.org/10.1016/j.jorganchem.2018.09.028
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6
Al-alkenyl-induced formation of long-chain branched polyethylene via coordinative tandem insertion and chain-transfer polymerization using (nBuCp)2ZrCl2/MAO systems: An experimental and theoretical study
Autor: Alexandre Welle, Lorenzo Piola, Olivier Lhost, Karl Mc Cabe, Katty Den Dauw, Aurélien Vantomme, Evgueni Kirillov, Jean-François Carpentier, Laurent Maron, Orlando Santoro
Publikováno v: European Polymer Journal
European Polymer Journal, 2021, 154, pp.110567. ⟨10.1016/j.eurpolymj.2021.110567⟩
European Polymer Journal, Elsevier, 2021, 154, pp.110567. ⟨10.1016/j.eurpolymj.2021.110567⟩
International audience; Recently, we have identified the Al-alkenyl species iBuAl(oct-7-en-1-yl)2 (Al-1) as a promising long-chain branching (LCB) promoter in the ethylene polymerization catalyzed by rac-{EBTHI}ZrCl2-based systems, proposing the inco
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77dc7e00e5655387fd173dcdefc7de6d
https://hal.science/hal-03284278
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7
Long-Chain Branched Polyethylene via Coordinative Tandem Insertion and Chain-Transfer Polymerization Using rac-{EBTHI}ZrCl2/MAO/Al-alkenyl Combinations: An Experimental and Theoretical Study
Autor: Alexandre Welle, Karl Mc Cabe, Jean-François Carpentier, Katty Den Dauw, Orlando Santoro, Lorenzo Piola, Olivier Lhost, Aurélien Vantomme, Evgueni Kirillov, Laurent Maron
Publikováno v: Macromolecules
Macromolecules, American Chemical Society, 2020, 53 (20), pp.8847-8857. ⟨10.1021/acs.macromol.0c01671⟩
Macromolecules, 2020, 53 (20), pp.8847-8857. ⟨10.1021/acs.macromol.0c01671⟩
International audience; In situ synthesis of topologically modified linear polyethylenes (PE) using single-site polymerization catalysis is a challenging task, but it can enable the production of valuable advanced polymer materials with tailored prop
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38e334c53301122d6cd217f85a72805f
https://hal.archives-ouvertes.fr/hal-03040883/document
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9
Zirconocene-Catalyzed Polymerization of alpha-Olefins: When Intrinsic Higher Activity Is Flawed by Rapid Deactivation
Autor: Fabien Proutiere, Aurélien Vantomme, Alexandre Welle, Evgueni Kirillov, Jean-Michel Brusson, Jean-François Carpentier, Katty Den Dauw, Xavier Desert, Olivier Miserque
Publikováno v: Organometallics
Organometallics, American Chemical Society, 2019, 38 (13), pp.2664-2673. ⟨10.1021/acs.organomet.9b00253⟩
Organometallics, 2019, 38 (13), pp.2664-2673. ⟨10.1021/acs.organomet.9b00253⟩
Kinetic studies of homogeneous 1-hexene polymerization have been used for determining the propagation rates and active sites concentrations of industrially relevant zirconocene catalytic systems in...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e538f3af609ab1e95ef9950fa9c7056
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02278426/document
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10
A Theoretical Outlook on the Stereoselectivity Origins of Isoselective Zirconocene Propylene Polymerization Catalysts
Autor: Ludovic Castro, Laurent Maron, Jean-François Carpentier, Jean-Michel Brusson, Gabriel Therukauff, Luc Haspeslagh, Alexandre Welle, Aurélien Vantomme, Evgueni Kirillov
Publikováno v: Chemistry-A European Journal
Chemistry-A European Journal, 2018, 24 (42), pp.10784-10792. ⟨10.1002/chem.201801438⟩
Chemistry
Chemistry, 2018, 〈10.1002/chem.201801438〉
Chemistry-A European Journal, Wiley-VCH Verlag, 2018, 24 (42), pp.10784-10792. ⟨10.1002/chem.201801438⟩
International audience; The first three insertion steps of propylene for isoselective metallocenes from the one-carbon-bridged cyclopentadienyl-fluorenyl {Cp/Flu} and silicon-bridged ansa-bis(indenyl) {SBI} families were computed by using a theoretic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1ba3f673f163d7fc1075ecaa87bd37e
https://univ-rennes.hal.science/hal-01807879
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