Effect of free trimethylaluminum content in methylaluminoxane on performances of bis(salicylaldiminate)nickel(II)-based catalysts for ethylene polymerization

被引：11

作者：

Carlini, C ^{[1
]}

De Luise, V ^{[1
]}

Fernandes, EG ^{[1
]}

Martinelli, M ^{[1
]}

Galletti, AMR ^{[1
]}

Sbrana, G ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2005年 / 26卷 / 10期

关键词：

bis[3,5-dinitro-N-(2,6-iisopropylphenyl) salicylaidiminate]nickel(II); 2,6-di-tert-butylphenol; methylaluminoxane; organometallic catalysts; polyethylene (PE); trimethylaluminum;

D O I：

10.1002/marc.200500005

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The performances of ethylene polymerization catalysts based on III and commercial methylaluminoxane were investigated by reducing the content of free trimethylaluminum in methylaluminoxane by its reaction with 2,6-di-tert-butylphenol. This allowed optimization of the formulation of the catalyst, affording a high-molecular-weight linear polyethylene (PE) with a productivity [(1900 kg of PE/(mol of Ni x h)], ten-fold higher than that previously achieved for the same system adopting commercial methylaluminoxane not pre-treated with the above phenol derivative.

引用

页码：808 / 812

页数：5

共 50 条

[1] Vinyl polymerization of norbornene by bis(nitro-substituted-salicylaldiminate)nickel (II)/methylaluminoxane catalysts
Carlini, C
Martinelli, M
Galletti, AMR
Sbrana, G
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2006, 44 (04) : 1514 - 1521
[2] Bis(salicylaldiminate)copper(II)/methylaluminoxane catalysts for homo- and copolymerizations of ethylene and methyl methacrylate
Galletti, Anna Maria Raspolli
Carlini, Carlo
Giaiacopi, Simone
Martinelli, Marco
Sbrana, Glauco
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2007, 45 (06) : 1134 - 1142
[3] Ethylene oligomerization by novel catalysts based on bis(salicylaldiminate)nickel(II) complexes and organoaluminum co-catalysts
Carlini, C
Isola, M
Liuzzo, V
Galletti, AMR
Sbrana, G
APPLIED CATALYSIS A-GENERAL, 2002, 231 (1-2) : 307 - 320
[4] Highly active methyl methacrylate polymerization catalysts obtained from bis(3,5-dinitro-salicylaldiminate)nickel(II) complexes and methylaluminoxane
Carlini, C
Martinelli, M
Galletti, AMR
Sbrana, G
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2003, 41 (13) : 2117 - 2124
[5] Styrene polymerization by Ziegler-Natta catalysts based on bis(salicylaldiminate)nickel(II) complexes and methyl aluminoxane
Carlini, C
Macinai, A
Galletti, AMR
Sbrana, G
MACROMOLECULAR SYMPOSIA, 2004, 213 : 209 - 220
[6] Ethylene polymerization by bis(salicylaidiminate) nickel (II)/aluminoxane catalysts
Carlini, C
Macinai, A
Masi, F
Galletti, AMR
Santi, R
Sbrana, G
Sommazz, A
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2004, 42 (10) : 2534 - 2542
[7] Polymerization of methyl methacrylate by sterically modulated bis(salicylaldiminate)-cobalt(II) complexes combined with methylaluminoxane
Bahuleyan B.K.
Chandran D.
Chang H.K.
Ha C.-S.
Kim I.
Macromolecular Research, 2008, 16 (8) : 745 - 748
[8] Homopolymerization of n-butyl methacrylate using bis(salicylaldiminate)copper(II)/methylaluminoxane catalysts
Galletti, Anna Maria Raspolli
Hayatifar, Mohammad
Patil, Yogesh
POLYMER INTERNATIONAL, 2010, 59 (08) : 1148 - 1153
[9] Polymerization of Methyl Methaerylate by Sterically Modulated Bis(salicylaldiminate)-Cobalt(II) Complexes Combined with Methylaluminoxane
Babuleyan, Bijal Kottukkal
Chandran, Deepak
Kwak, Chang Hun
Ha, Chang-Sik
Kim, Il
MACROMOLECULAR RESEARCH, 2008, 16 (08) : 745 - 748
[10] Vinyl polymerization of norbornene by bis(salicylaldiminate)copper(II)/methylalumoxane catalysts
Carlini, Carlo
Giaiacopi, Simone
Marchetti, Fabio
Pinzino, Calogero
Galletti, Anna Maria Raspolli
Sbrana, Glauco
ORGANOMETALLICS, 2006, 25 (15) : 3659 - 3664

← 1 2 3 4 5 →