Method for forming highly reactive olefin functional polymers

The invention relates to a method for forming highly reactive olefin functional polymers. An improved process for the preparation of polybutene having an exo-olefin content of at least 50 mol. % by the polymerization of iso-butene, or a C4 feed containing iso-butene and other C4 olefins using (i) a Lewis acid.cndot.Lewis base catalyst complex and an alkyl halide initiator, in a substantially or completely apolar polymerization medium, in the presence of a hindered alcohol or alkoxyaluminum dichloride. In the above polymerization reaction, it has been found that a hindered alcohol or hindered alkoxyaluminum dichloride will function as an ''exo enhancer'' resulting in high isobutene conversion and the production of a polybutene product having a high terminal vinylidene content, while maintaining a target molecular weight. 本发明涉及用于形成高反应性烯烃功能聚合物的方法。制备外烯烃含量为至少50mol％的聚丁烯的改进方法包括：使用(i)路易斯酸·路易斯碱催化剂配合物和烷基卤化物引发剂，在基本或完全非极性聚合介质中，在受阻醇或烷氧基二氯化铝的存在下，使异丁烯或含有异丁烯和其它C烯烃的C进料聚合。在上述聚合反应中，已发现受阻醇或受阻烷氧基二氯化铝将起到"外型增强剂"的作用，得到高异丁烯转化率且生产具有高末