作者:Bernd Peifer、Wolfgang Milius、Helmut G Alt
DOI:10.1016/s0022-328x(97)00525-1
日期:1998.2
A novel method for the preparation of heterogeneous metallocene catalysts is described that can be applied for the polymerization of olefins starting with homogeneous metallocene complexes. For this purpose zirconocene dichloride complexes have been prepared containing alkenyl or alkynyl substituents. These complexes can be activated with methyl alumoxane (MAO) and then are incorporated as comonomers
描述了一种制备非均相茂金属催化剂的新方法,该方法可用于从均相茂金属络合物开始的烯烃聚合。为此,已经制备了含有烯基或炔基取代基的二茂锆二氯化物配合物。这些配合物可用甲基铝氧烷(MAO)活化,然后作为共聚单体掺入形成的聚烯烃链中。均相茂金属催化剂在反应条件下变得自固定化,然后聚烯烃的进一步形成被非均相催化。