Ethylene polymerization using crosslinked polystyrene as support for zirconocene dichloride/methylaluminoxane
Ethylene polymerization using crosslinked polystyrene as support for zirconocene dichloride/methylaluminoxane
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DOI：
10.1002/(sici)1521-3927(19990401)20:4
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发表时间：
1999-04
影响因子：
4.6
通讯作者：
M. Stork;M. Koch;M. Klapper;K. Müllen;H. Gregorius;U. Rief
中科院分区：
文献类型：
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作者：
M. Stork;M. Koch;M. Klapper;K. Müllen;H. Gregorius;U. Rief
本文报道了以交联型聚苯乙烯为载体的二氯化锆/甲基铝氧烷催化剂体系，以期为气相或浆态过程提供乙烯聚合催化剂。我们的新方法使用环戊二烯的Diels-Alder反应作为最终的交联合成步骤。这提供了具有均匀分布的活性中心的聚合物负载的茂锆催化剂。扫描电子显微镜显示催化剂具有高活性，并形成球形小球。
In this paper we report on a zirconocene dichloride/methylaluminoxane catalyst system supported on a crosslinked polystyrene in order to provide ethylene polymerization catalysts for gas phase or slurry processes. Our novel approach uses the Diels-Alder reaction of cyclopentadiene functions as the final, cross-linking synthetic step. This provides polymer supported zirconocene catalysts with a homogeneous distribution of active sites. The catalysts were shown to be highly active and to form spherical beads as proven by scanning electron microscopy.