Octahedral Group IV Bis(phenolate) Catalysts for 1-Hexene Homopolymerization and Ethylene/1-Hexene Copolymerization

被引：23

作者：

Kiesewetter, Elizabeth T. ^{[1
]}

Waymouth, Robert M. ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

MACROMOLECULES | 2013年 / 46卷 / 07期

关键词：

OLEFIN BLOCK-COPOLYMERS; ZIRCONIUM COMPLEXES; REACTIVITY RATIOS; ETHENE/PROPENE COPOLYMERIZATION; CRYSTALLIZATION BEHAVIOR; SEQUENCE DISTRIBUTION; COMONOMER SEQUENCE; HIGH-TEMPERATURE; CHAIN TRANSFER; LINEAR METHODS;

D O I：

10.1021/ma400116w

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Octahedral group IV bis(phenolate) catalysts are highly active catalysts for the isospecific polymerization of 1-hexene and the copolymerization of ethylene with 1-hexene. These catalysts are active for the production of high molecular weight copolymers even at 130 degrees C. The copolymerization parameters for these complexes were determined; all of the bis(phenolate) complexes tested incorporate 1-hexene with high efficiency to give random copolymers. The complexes prepared from the more sterically demanding ligands showed higher molecular weights but similar comonomer incorporations to those prepared from the less sterically demanding ligands.

引用

页码：2569 / 2575

页数：7

共 50 条

[1] Mechanistic studies of the polymerization of 1-hexene by group IV amine bis(phenolate)-Salan catalysts
Jones, Mary E.
Travia, Nicholas E.
Switzer, Jeff
Shim, Soo-Yeon
Sesselman, Meagan
Medvedev, Grigori
Caruthers, James M.
Delgass, W. Nicholas
Abu-Omar, Mahdi M.
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2010, 239
[2] CO(III) CATALYZED POLYMERIZATIONS OF ETHYLENE, OLIGOMERIZATIONS OF 1-HEXENE, AND COPOLYMERIZATION OF ETHYLENE AND 1-HEXENE
BROOKHART, M
VOLPE, AF
DESIMONE, JM
LAMANNA, WM
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1991, 201 : 157 - POLY
[3] Copolymerization of ethylene with 1-hexene over supported zirconocene catalysts
Echevskaya, LG
Zakharov, VA
Semikolenova, NV
Mikenas, TB
[J]. POLIMERY, 2001, 46 (01) : 40 - 43
[4] Homopolymerization of ethylene and copolymerization of ethylene and 1-hexene with bridged metallocene/methylaluminoxane catalysts:: the influence of the bridging moiety
Köppl, A
Babel, AI
Alt, HG
[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 153 (1-2) : 109 - 119
[5] Fluxional catalysts in ethylene/propylene and ethylene/1-hexene copolymerization.
Waymouth, RM
Dankova, M
Petoff, JLM
Kravchenko, R
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2000, 219 : U882 - U882
[6] Quantitative Comparative Kinetics of 1-Hexene Polymerization across Group IV Bis-Phenolate Catalysts
Pletcher, Paul D.
Switzer, Jeffrey M.
Steelman, D. Keith
Medvedev, Grigori A.
Delgass, W. Nicholas
Caruthers, James M.
Abu-Omar, Mahdi M.
[J]. ACS CATALYSIS, 2016, 6 (08): : 5138 - 5145
[7] Kinetic modeling of 1-hexene polymerization using group IV amine bis-phenolate catalysts
Pletcher, Paul
Switzer, Jeffrey
Steelman, D. Keith
Medvedev, Grigori
Caruthers, James
Delgass, W. Nicholas
Abu-Omar, Mahdi
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2015, 250
[8] α-olefin homopolymerization and ethylene/1-hexene copolymerization catalysed by novel ansa-group IV complexes/MAO system
Yang, Xiaoxia
Zhang, Yong
Huang, Jiling
[J]. APPLIED ORGANOMETALLIC CHEMISTRY, 2007, 21 (10) : 870 - 879
[9] Ethylene homopolymerization and ethylene/1-hexene copolymerization catalysed by mixed salicylaldiminato cyclopentadienyl zirconium complexes
Huang, Wenzhong
Sun, Xueqin
Ma, Haiyan
Huang, Jiling
[J]. INORGANICA CHIMICA ACTA, 2010, 363 (09) : 2009 - 2015
[10] Polymerization of 1-Hexene and Copolymerization of Ethylene with 1-Hexene Catalyzed by Cationic Half-Sandwich Scandium Alkyls
Luo, Yunjie
Hou, Zhaomin
[J]. PROGRESS IN OLEFIN POLYMERIZATION CATALYSTS AND POLYOLEFIN MATERIALS, PROCEEDINGS OF THE FIRST ASIAN POLYOLEFIN WORKSHOP, 2006, 161 : 95 - 104

← 1 2 3 4 5 →