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利用茂金属与ＭＡＯ 的复合物为乙烯原位聚合制备短链支化聚乙烯的共聚催化剂，以Ｔｉ（Ｏｎ－Ｂｕ）４／ＡｌＥｔ３为二聚催化剂组成双功能催化剂体系，该聚合体系具有高活性、分子量分布窄、结晶度低以及聚合物物性可调等优异特点．
The metallocene and MAO complexes were used to prepare ethylene glycol in-situ polymerization of short-chain branched polyethylene. The catalyst system was composed of Ti (On-Bu) 4 / AlEt3 as dimerization catalyst. The polymerization system had high activity , Narrow molecular weight distribution, low crystallinity and excellent physical properties of the polymer.