Copolymerization of ethylene with 1-hexene over supported zirconocene catalysts

被引：7
|
作者：
Echevskaya, LG [1 ]
Zakharov, VA [1 ]
Semikolenova, NV [1 ]
Mikenas, TB [1 ]
机构：
[1] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk, Russia
来源：
POLIMERY | 2001年 / 46卷 / 01期
关键词：
supported zirconocene catalysts; ethylene-1-hexene copolymerization; effect of support; silicon dioxide; magnesium dichloride;
D O I：
10.14314/polimery.2001.040
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Two supported zirconocene catalysts were prepared: (I) SiO2/MAO/Me2Si(Ind)(2)ZrCl2 (0.1 wt. % Zr, 9.0 wt. % Air and (TI) MgCl2/Me2Si(Ind)(2)ZrCl2 (0.2 wt. % Zr, 1.6 wt. % Al). Ethylene was homopolymerized and copolymerized with 1-hexene (70-90 degreesC, 6 bar, TIBA as cocatalyst) over (I) and (II). Catalyst (I) incorporated the comonomer as much as did the homogeneous catalyst of the same composition. MgCl2 used as support resulted in reduced copolymerization reactivity of the catalyst. Copolymer crystallinity and catalyst activity were studied in relation to the concentration of 1-hexene.
引用
收藏
页码：40 / 43
页数：4
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