Homo-Polymerization of 1-Hexene Catalysed by ONN (Salicylaldimine)Iron(III) Pre-Catalysts to Branched Poly(1-hexene)

被引：3

作者：

Yankey, Margaret ^{[1
]}

Obuah, Collins ^{[1
]}

Darkwa, James ^{[1
]}

机构：

[1] Univ Johannesburg, Dept Chem, Auckland Pk Kingsway Campus, ZA-2006 Auckland Pk, South Africa

来源：

CATALYSTS | 2016年 / 6卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

(salicylaldimine)iron(III) pre-catalysts; 1-hexene polymerisation; branched low molecular weight poly(1-hexene); narrow polydispersity indices; ETHYLENE POLYMERIZATION CATALYSTS; DIIMINE NI(II) CATALYST; C-13 NMR DETERMINATION; ALPHA-OLEFINS; LIVING POLYMERIZATION; METAL CATALYSTS; VINYL MONOMERS; IRON CATALYSTS; NICKEL; COMPLEXES;

D O I：

10.3390/catal6030047

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Five new iron(III) 1-hexene polymerisation catalysts were prepared from the reactions of 2,4-di-tert-butyl-6-(2-(1H-imidazol-4-yl)ethylimino)methylphenol (L1), or 4-tert-butyl-6-(2-(1H-imidazol-4-yl)ethylimino)methylphenol (L2) or 2,4-di-tert-butyl-6-[(2-pyridin-2-yl-ethylimino)-methyl-phenol (L3) with anhydrous iron(II) halides to form [FeCl2(L1)] (1), [FeBr2(L1)] (2), [FeI2(L1)] (3), [FeBr2(L2)] (4) and [FeCl2(L3)] (5). All the iron(III) complexes 1-5 were activated with EtAlCl2 to produce active catalysts for the polymerisation of 1-hexene to low molecular weight poly(1-hexene) (M-n = 1021-1084 Da) and very narrow polydispersity indices (1.19-1.24). H-1 and C-13{H-1} NMR analysis showed the polymers are branched with methyl, butyl and longer chain branches. The longer chain branches are dominant indicating that 2,1-insertion of monomer is favoured over 1,2-insertion in the polymerisation reaction.

引用

页数：12

共 50 条

[11] OLIGOMERIZATION OF 1-HEXENE WITH CO(III) COMPLEXES
DRAKE, JB
BROOKHART, MS
VOLPE, AF
LAMANNA, WM
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 203 : 84 - INOR
[12] LOW-TEMPERATURE POLYMERIZATION OF 1-HEXENE IN PRESENCE OF CHROMOALUMINOSILICATE CATALYSTS
PANCHENKOV, GM
VAGIN, MF
BOGDANOV, DB
GRINIS, LM
KANAEVA, MG
ZHURNAL FIZICHESKOI KHIMII, 1974, 48 (04): : 884 - 888
[13] Zirconium and titanium diamine bis(phenolate) catalysts for α-olefin polymerization:: From atactic oligo(1-hexene) to ultrahigh-molecular-weight isotactic poly(1-hexene)
Segal, S
Goldberg, I
Kol, M
ORGANOMETALLICS, 2005, 24 (02) : 200 - 202
[14] Catalyst Deactivation Processes during 1-Hexene Polymerization
Joshi, Anuj
Zijlstra, Harmen S.
Collins, Scott
McIndoe, J. Scott
ACS CATALYSIS, 2020, 10 (13): : 7195 - 7206
[15] Polymerization of 1-hexene and 1-octene using graphite-supported catalysts
Sukhova, TA
Dyachkovskii, FS
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B, 1997, 39 (03): : 401 - 405
[16] Promoted iridium complexes as catalysts in hydroformylation of 1-hexene
Moreno, MA
Haukka, M
Pakkanen, TA
JOURNAL OF CATALYSIS, 2003, 215 (02) : 326 - 331
[17] The influence of cocatalysts on 1-hexene polymerization with various supported magnesium – titanium catalysts
Irina V. Vasilenko
Sergei V. Kostjuk
Polymer Bulletin, 2006, 57 : 129 - 138
[18] Polymer compositions based on polyethylene and poly(1-hexene)
N. V. Koval
A. V. Ivanyuk
B. F. Shklyaruk
E. M. Antipov
Polymer Science Series B, 2007, 49 : 253 - 255
[19] Polymer compositions based on polyethylene and poly(1-hexene)
Koval, N. V.
Ivanyuk, A. V.
Shkiyaruk, B. F.
Andpov, E. M.
POLYMER SCIENCE SERIES B, 2007, 49 (9-10) : 253 - 255
[20] MOLECULAR MECHANICS MODELING OF 1-HEXENE POLYMERIZATION AT ZIRCONOCENE CENTERS
WRIGHT, JM
LANDIS, CR
ROOT, DM
SIEDLE, AR
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1993, 206 : 102 - INOR

← 1 2 3 4 5 →