Effect of ketimide ligand for ethylene polymerization and ethylene/norbornene copolymerization catalyzed by (cyclopentadienyl)(ketimide)titanium complexes–MAO catalyst systems: Structural analysis for Cp∗TiCl2(NCPh2)

2007 ◽  
Vol 692 (21) ◽  
pp. 4675-4682 ◽  
Author(s):  
Kotohiro Nomura ◽  
Junji Yamada ◽  
Wei Wang ◽  
Jingyu Liu
Keyword(s):  
Structural Analysis ◽  
Ethylene Polymerization ◽  
Titanium Complexes ◽  
Catalyst Systems

New Titanium Complexes Having Two Indolide-Imine Chelate Ligands for Living Ethylene Polymerization

2001 ◽  
Vol 30 (6) ◽  
pp. 566-567 ◽  
Author(s):  
Tomoaki Matsugi ◽  
Shigekazu Matsui ◽  
Shin-ichi Kojoh ◽  
Yukihiro Takagi ◽  
Yoshihisa Inoue ◽  
...  
Keyword(s):  
Ethylene Polymerization ◽  
Titanium Complexes ◽  
Chelate Ligands

Mono(imidazolin-2-iminato) Titanium Complexes for Ethylene Polymerization at Low Amounts of Methylaluminoxane

2013 ◽  
Vol 135 (34) ◽  
pp. 12592-12595 ◽  
Author(s):  
Dana Shoken ◽  
Manab Sharma ◽  
Mark Botoshansky ◽  
Matthias Tamm ◽  
Moris S. Eisen
Keyword(s):  
Ethylene Polymerization ◽  
Titanium Complexes

Influence of ligands and cocatalyst on the activity in ethylene polymerization of soluble titanium complexes

1994 ◽  
Vol 89 (1-2) ◽  
pp. 41-50 ◽  
Author(s):  
Giuseppe Conti ◽  
Guillermo Arribas ◽  
Angelina Altomare ◽  
Francesco Ciardelli
Keyword(s):  
Ethylene Polymerization ◽  
Titanium Complexes

scholarly journals NMR and EPR trapping of the active species in the ethylene polymerization and trimerization catalyst systems

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
I.E. Soshnikov ◽  
N.V. Semikolenova ◽  
A.A. Antonov ◽  
K.P. Bryliakov ◽  
V.A. Zakharov ◽  
...  
Keyword(s):  
Epr Spectroscopy ◽  
Ethylene Polymerization ◽  
Catalyst Deactivation ◽  
Active Species ◽  
Ion Pair ◽  
Polymerization Catalysts ◽  
Ethylene Trimerization ◽  
Catalyst Systems

AbstractIn this work, previously undetected intermediates of several practically promising catalyst systems for ethylene polymerization and trimerization are discussed. In particular, the activation of ethylene polymerization catalysts (1) LNiCl2 (L = 2,4,6-trimethyl- (N-5,6,7-trihydroquinolin-8-ylidene)phenylamine) with AlEt2Cl and AlMe2Cl, (2) activation of bis(imino)pyridine vanadium(III) chloride L1VIIICl3 (L1 = 2,6-(ArN=CMe)2C5H3N, Ar = 2,6-iPr2C6H3; 2,6-Me2C6H3; 2,4,6-Me3C6H2; 3,5- F2C6H3) with AlMe3/[Ph3C]+[B(C6F5)]4¯ and MAO, and (3) selective ethylene trimerization catalyst (FI)TiCl3 (FI = phenoxyimine ligand with an additional aryl-OCH3 donor) with MAO have been assessed by NMR and EPR spectroscopy. The nature of ion-pair intermediates – the closest precursors of the propagating species – has been established, and the major catalyst deactivation pathways are discussed.

Synthesis, X-ray Structural Analysis, and Ethylene Polymerization Studies of Group IV Metal Heterobimetallic Aluminum-Pyrrolyl Complexes

2012 ◽  
Vol 31 (17) ◽  
pp. 6085-6094 ◽  
Author(s):  
Shaneesh Vadake Kulangara ◽  
Amir Jabri ◽  
Yun Yang ◽  
Ilia Korobkov ◽  
Sandro Gambarotta ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Ethylene Polymerization ◽  
Group Iv ◽  
X Ray
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