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Published in 2017 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-017-6824-0
Abstract: Development of olefin block copolymers (OBCs) based on new catalytic systems is challenging. We evaluate the performance of rac-ethylenebis(1-η5-indenyl)zirconium dichloride (Zr) and bis(imino)pyridine iron (Fe) catalysts, with different comonomer affinities, in copolymerization of ethylene/1-hexene. In-depth…
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Keywords:
olefin block;
block copolymers;
ethylene hexene;
iron ... See more keywords
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Published in 2019 at "Journal of Catalysis"
DOI: 10.1016/j.jcat.2018.11.034
Abstract: Abstract Two MgCl2-supported Ziegler-Natta model catalysts were prepared by contacting activated MgCl2 with deficient or excess amount of TiCl4. Ethylene/1-hexene copolymerization with the catalysts was conducted under different 1-hexene feed, and active center concentration of…
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Keywords:
hexene;
ziegler natta;
hexene copolymerization;
ethylene hexene ... See more keywords
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Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c03244
Abstract: A new series of catalysts for ethylene and ethylene/1-hexene (co)polymerizations bearing constrained hydroxyindanone-imine ligands was developed for titanium(IV) and zirconium(IV) metals with variations of steric and electronic contributions on the ligands. X-ray crystal structures revealed…
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Keywords:
ethylene hexene;
ethylene ethylene;
titanium zirconium;
bearing constrained ... See more keywords
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Published in 2021 at "RSC Advances"
DOI: 10.1039/d1ra00446h
Abstract: A family of permethylindenyl titanium constrained geometry complexes, Me2SB(R′N,3-RI*)TiX2 ((3-R-η5-C9Me5)Me2Si(R′TiX2)), supported on solid polymethylaluminoxane (sMAO) are investigated as slurry-phase catalysts for ethylene/H2 homopolymerisation and ethylene/1-hexene copolymerisation by high-throughput catalyst screening. Me2SB(tBuN,I*)TiCl2 supported on sMAO [sMAO-Me2SB(tBuN,I*)TiCl2]…
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Keywords:
hexene;
catalyst screening;
throughput catalyst;
high throughput ... See more keywords
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1
Published in 2022 at "International Journal of Molecular Sciences"
DOI: 10.3390/ijms231810335
Abstract: Ethylene polymerization and ethylene/1-hexene copolymerization over the titanium–magnesium catalytic system in the presence of chlorocyclohexane (CHC) and hexachloro-p-xylene (HCPX) has been studied. Modification of TMC with chlorocyclohexane and hexachloro-p-xylene increased catalyst activity severalfold for both…
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Keywords:
ethylene hexene;
titanium magnesium;
copolymerization;
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2
Published in 2023 at "Polymers"
DOI: 10.3390/polym15112435
Abstract: Density functional theory (DFT) is employed to investigate the promotion of B(C6F5)3 as a ligand for titanium (or vanadium) catalysts in ethylene/1-hexene copolymerization reactions. The results reveal that (I) Ethylene insertion into TiB (with B(C6F5)3…
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Keywords:
ethylene hexene;
c6f5 ligand;
titanium vanadium;
vanadium catalysts ... See more keywords