Kinetic study of ethylene polymerization by highly active silica supported TiCL4/MgCl2 catalysts

1990 ◽  
Vol 39 (4) ◽  
pp. 837-854 ◽  
Author(s):  
Il Kim ◽  
Jae Ha Kim ◽  
Seong Ihl Woo
Keyword(s):  
Kinetic Study ◽  
Ethylene Polymerization ◽  
Highly Active

Photocatalytic parameters and kinetic study for degradation of dichlorophenol-indophenol (DCPIP) dye using highly active mesoporous TiO 2 nanoparticles

2016 ◽  
Vol 43 ◽  
pp. 26-39 ◽  
Author(s):  
H.A. Hamad ◽  
W.A. Sadik ◽  
M.M. Abd El-latif ◽  
A.B. Kashyout ◽  
M.Y. Feteha
Keyword(s):  
Kinetic Study ◽  
Highly Active

scholarly journals Ferrous and Cobaltous Chlorides Bearing 2,8-Bis(imino)quinolines: Highly Active Catalysts for Ethylene Polymerization at High Temperature

2010 ◽  
Vol 29 (24) ◽  
pp. 6837-6840 ◽  
Author(s):  
Shu Zhang ◽  
Wen-Hua Sun ◽  
Tianpengfei Xiao ◽  
Xiang Hao
Keyword(s):  
High Temperature ◽  
Ethylene Polymerization ◽  
Highly Active

The Kinetic Study of Ethylene Polymerization over Titanium–Magnesium Catalysts in the Presence of Hydrogen: The Number and Reactivity of Active Centers

2020 ◽  
Vol 62 (1) ◽  
pp. 14-21 ◽  
Author(s):  
V. V. Sukulova ◽  
A. A. Barabanov ◽  
T. B. Mikenas ◽  
M. A. Matsko ◽  
V. A. Zakharov
Keyword(s):  
Kinetic Study ◽  
Ethylene Polymerization ◽  
Active Centers

Chromium complexes supported by the bidentate PN ligands: synthesis, characterization and application for ethylene polymerization

2018 ◽  
Vol 47 (38) ◽  
pp. 13459-13465 ◽  
Author(s):  
Quande Zheng ◽  
Dejuan Zheng ◽  
Binghao Han ◽  
Shaofeng Liu ◽  
Zhibo Li
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Ethylene Polymerization ◽  
Chromium Complexes ◽  
Highly Active ◽  
Imine Ligands

Chromium complexes bearing phosphine–imine ligands are highly active for ethylene polymerization and produce HDPE with a high molecular weight.

Preparation of highly active Cr-catalysts for ethylene polymerization

Polymer ◽  
1985 ◽  
Vol 26 (12) ◽  
pp. 1891-1894 ◽  
Author(s):  
Kazuo Soga ◽  
Shian-Ing Chen ◽  
Takeshi Shiono ◽  
Yoshiharu Doi
Keyword(s):  
Ethylene Polymerization ◽  
Highly Active

Ethylene Polymerization by Thioether Bridged Dinuclear Titanocene Complex

2011 ◽  
Vol 213 ◽  
pp. 354-357 ◽  
Author(s):  
Yu Jing Nie ◽  
Ming Yang
Keyword(s):  
Molecular Weight ◽  
Catalytic Activity ◽  
Ethylene Polymerization ◽  
Gel Permeation Chromatography ◽  
Molar Ratio ◽  
Polymerization Temperature ◽  
High Concentration ◽  
Highly Active ◽  
Cyclopentadienyl Ligand ◽  
Broad Molecular Weight Distribution

The thioether bridged metallocene complex [(C5H5)Cl2TiC5H4CH2CH2]2S has been synthesized by treating the dilithium salts of the thioether bridged cyclopentadienyl ligand with two equivalents of C5H5TiCl3 and characterized by 1HMNR and elemental analysis. After activation with methylaluminoxane (MAO), the complex was highly active catalysts for homogeneous ethylene polymerization in toluene. The influence of the molar ratio [MAO]/[Cat], the catalyst concentration, time and temperature have been studied systematically. The catalytic activity of 1 is 3.63×105 g PE/mol•Cat•h. Rising the polymerization temperature decreases the catalytic activity for 1. A high concentration of the catalysts drops the catalytic activity as well as the molecular weight of polyethylene for the complex. High temperature gel permeation chromatography (HT-GPC) proves the production of polyethylene with a broad molecular weight distribution (MWD).

Indirect Synthesis of Bis(2-PhInd)ZrCl2 Metallocene Catalyst, Kinetic Study and Modeling of Ethylene Polymerization

2011 ◽  
Vol 34 (2) ◽  
pp. 249-256 ◽  
Author(s):  
S. Ahmadjo ◽  
H. Arabi ◽  
M. Nekoomanesh ◽  
S. M. M. Mortazavi ◽  
G. Zohuri ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Ethylene Polymerization ◽  
Metallocene Catalyst
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