Heterogeneous Ziegler-Natta catalyst based on neodymium for the stereospecific polymerization of butadiene

被引：2
|
作者：
Barbotin, F [1 ]
Spitz, R [1 ]
Boisson, C [1 ]
机构：
[1] CNRS, CPE, Lab Chim & Proc Polymerisat, F-69616 Villeurbanne, France
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2001年 / 22卷 / 17期
关键词：
polybutadiene; transition metal chemistry; Ziegler-Natta polymerization; stereospecific polymerization; lanthanide;
D O I：
10.1002/1521-3927(20011101)22:17<1411::AID-MARC1411>3.0.CO;2-2
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 synthesis of a series of neodymium complexes supported on modified silica is reported. In an initial step the silanol groups were masked by a Lewis acid (BCl3, AlCl3, TiCl4, ZrCl4, SnCl4, SbCl5, HfCl4), and then a soluble arene complex Nd(eta (6)-C6H5Me)(AlCl4)(3) formed in situ was reacted with the modified silica. The supported complexes are active and highly stereospecific for butadiene polymerization; 1,4-cis insertion is superior by 99%. The catalyst based on a treatment of silica with BCl3 is the most efficient.
引用
收藏
页码：1411 / 1414
页数：4
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