1·Ketenes, notably dimethyl ketene, readily undergo oligomerization and polymerization.
烯酮，特别是二甲基烯酮，很容易齐聚和。
2·The recent advances in study of chromium-based homogeneous catalysts used in ethylene oligomerization were reviewed.
综述了近年来铬系催化剂催化乙烯齐聚反应的研究进展。
3·This article studies the reaction-mechanism of oligomerization of butadiene and the situation of reaction product utilization.
首先探讨了丁二烯的环三齐聚反应机理，并对其生成物的利用现状做了分析。
4·Synthesis of perfluorous nonene (C9F18) by oligomerization of hexafluoropropylene (C3F6) was studied.
研究了六氟丙烯（C3F6）齐聚合成全氟壬烯（C9F18）的工艺。
5·The invention also discloses a preparation method for the novel complex, a catalyst composition containing the novel complex, and application thereof in ethylene oligomerization and polymerization.
本发明还公开了这种新颖配合物的制备方法，包含该新颖配合物的催化剂组合物及其在乙烯齐聚和聚合中的应用。