Completely Isospecific Polymerization of 1-Hexene Catalyzed by Hafnium(IV) Dichloro Complex Incorporating with an [OSSO]-type Bis(phenolate) Ligand

被引：14
|
作者：
Nakata, Norio [1 ]
Saito, Yusuke [1 ]
Watanabe, Takanori [1 ]
Ishii, Akihiko [1 ]
机构：
[1] Saitama Univ, Grad Sch Sci & Engn, Dept Chem, Sakura Ku, Saitama 3388570, Japan
来源：
TOPICS IN CATALYSIS | 2014年 / 57卷 / 10-13期
关键词：
Hafnium; Isospecific polymerization; 1-Hexene; Post-metallocene; Single-site catalyst; OSSO]-Type ligand;
D O I：
10.1007/s11244-014-0252-1
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In the presence of dried methylaluminoxane as an activator, the hafnium(IV) dichloro pre-catalyst 4 incorporating with an [OSSO]-type ligand was found to promote precisely isospecific 1-hexene polymerizations of [mmmm] up to 95 % with fairly high activities (1,050-3,180 g mmol(4)(-1) h(-1)) and relatively narrow polydispersities (M-w/M-n = 1.5-1.8).
引用
收藏
页码：918 / 922
页数：5
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