scholarly journals Bis(imino)-6,7-dihydro-5H-quinoline-cobalt complexes as highly active catalysts for the formation of vinyl-terminated PE waxes; steps towards inhibiting deactivation pathways through targeted ligand design

RSC Advances ◽  
2021 ◽  
Vol 11 (63) ◽  
pp. 39869-39878
Author(s):  
Mingyang Han ◽  
Zheng Zuo ◽  
Yanping Ma ◽  
Gregory A. Solan ◽  
Xinquan Hu ◽  
...  
Keyword(s):  
Ligand Design ◽  
Cobalt Complexes ◽  
Polymerization Catalysts ◽  
Highly Active

Narrowly dispersed PE waxes with high levels of vinyl functionality are produced using the depicted cobalt polymerization catalysts.

scholarly journals Thermally stable and highly active cobalt precatalysts for vinyl-polyethylenes with narrow polydispersities: integrating fused-ring and imino-carbon protection into ligand design

2016 ◽  
Vol 40 (9) ◽  
pp. 8012-8023 ◽  
Author(s):  
Fang Huang ◽  
Wenjuan Zhang ◽  
Yang Sun ◽  
Xinquan Hu ◽  
Gregory A. Solan ◽  
...  
Keyword(s):  
Ligand Design ◽  
Cobalt Complexes ◽  
Thermally Stable ◽  
Highly Active ◽  
Fused Ring

Finely tuned cobalt complexes, upon activation with either MAO or MMAO, exhibited high activities up to 80 °C and produced highly linear vinyl-polyethylenes.

Chelate Bis(imino)pyridine Cobalt Complexes:  Synthesis, Reduction, and Evidence for the Generation of Ethene Polymerization Catalysts by Li+Cation Activation

2005 ◽  
Vol 127 (40) ◽  
pp. 13955-13968 ◽  
Author(s):  
Nina Kleigrewe ◽  
Winfried Steffen ◽  
Tobias Blömker ◽  
Gerald Kehr ◽  
Roland Fröhlich ◽  
...  
Keyword(s):  
Cobalt Complexes ◽  
Polymerization Catalysts ◽  
Cation Activation ◽  
Ethene Polymerization

scholarly journals Vanadyl complexes bearing bi-dentate phenoxyimine ligands: synthesis, structural studies and ethylene polymerization capability

2014 ◽  
Vol 43 (22) ◽  
pp. 8300-8310 ◽  
Author(s):  
Jing Ma ◽  
Ke-Qing Zhao ◽  
Mark J. Walton ◽  
Joseph A. Wright ◽  
Josef W. A. Frese ◽  
...  
Keyword(s):  
Ethylene Polymerization ◽  
Structural Studies ◽  
Polymerization Catalysts ◽  
Highly Active ◽  
Vanadyl Complexes

Mono- and bi-vanadium bidentate phenoxyimine complexes have been structurally characterized. They are highly active ethylene polymerization catalysts in the presence of diethylaluminum chloride and ethyltrichloroacetate.

Bis(pyrazolyl)pyridine vanadium(III) complexes as highly active ethylene polymerization catalysts

2007 ◽  
Vol 692 (24) ◽  
pp. 5327-5330 ◽  
Author(s):  
Hanna S. Abbo ◽  
Selwyn F. Mapolie ◽  
James Darkwa ◽  
Salam J.J. Titinchi
Keyword(s):  
Ethylene Polymerization ◽  
Polymerization Catalysts ◽  
Highly Active

Halogen-Substituted 2,6-Bis(imino)pyridyl Iron and Cobalt Complexes:  Highly Active Catalysts for Polymerization and Oligomerization of Ethylene

2003 ◽  
Vol 22 (21) ◽  
pp. 4312-4321 ◽  
Author(s):  
Yaofeng Chen ◽  
Ruifang Chen ◽  
Changtao Qian ◽  
Xicheng Dong ◽  
Jie Sun
Keyword(s):  
Cobalt Complexes ◽  
Highly Active

Highly active dinuclear cobalt complexes for solvent-free cycloaddition of CO2 to epoxides at ambient pressure

2019 ◽  
Vol 55 (57) ◽  
pp. 8274-8277 ◽  
Author(s):  
Zafar A. K. Khattak ◽  
Hussein A. Younus ◽  
Nazir Ahmad ◽  
Habib Ullah ◽  
Suleman Suleman ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Coupling Reaction ◽  
Cobalt Complexes ◽  
Solvent Free ◽  
Highly Active

Dinuclear Co-based catalysts are used for the coupling reaction of epoxides and CO2 in the presence of a cocatalyst.

Highly active polymerization catalysts of long life derived from σ- and π-bonded transition metal alkyl compounds

Polymer ◽  
1974 ◽  
Vol 15 (3) ◽  
pp. 169-174 ◽  
Author(s):  
D.G.H. Ballard ◽  
E. Jones ◽  
R.J. Wyatt ◽  
R.T. Murray ◽  
P.A. Robinson
Keyword(s):  
Transition Metal ◽  
Polymerization Catalysts ◽  
Highly Active ◽  
Long Life

Highly Active Ethene Polymerization Catalysts with Unusual Imine Ligands

2005 ◽  
pp. 59-99 ◽  
Author(s):  
Gerrit A. Luinstra ◽  
Joachim Queisser ◽  
Benno Bildstein ◽  
Hans-Helmut Görtz ◽  
Christoph Amort ◽  
...  
Keyword(s):  
Polymerization Catalysts ◽  
Highly Active ◽  
Imine Ligands ◽  
Ethene Polymerization

Low valent Al(ii)–Al(ii) catalysts as highly active ε-caprolactone polymerization catalysts: indication of metal cooperativity through DFT studies

2018 ◽  
Vol 47 (39) ◽  
pp. 13800-13808 ◽  
Author(s):  
Olga V. Kazarina ◽  
Christophe Gourlaouen ◽  
Lydia Karmazin ◽  
Alexander G. Morozov ◽  
Igor L. Fedushkin ◽  
...  
Keyword(s):  
Room Temperature ◽  
Dft Studies ◽  
Polymerization Catalysts ◽  
Highly Active ◽  
Highly Effective ◽  
Low Valent

A dinuclear Al(ii)–Al(ii) species acts as a highly effective ROP catalyst of ε-caprolactone at room temperature, with a DFT computed ROP mechanism indicative of metal cooperativity.

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