生产IIR的新型催化剂进展

孙玉琴　

摘　要：综述几种可以用于异丁烯-异戊二烯高温共聚的新型催化剂体系，即活性阳离子络合催化体系，如叔酯或叔醚／四氯化钛催化剂体系；茂金属催化剂，如Cp₂ZrMe₂／B(C₆F₅)₃或(CPh₃)[B(C₆F₅)₄]催化剂体系；烷基氯化铝共催化剂体系；可以改变相对分子质量分布的叔-醇／Lewis酸催化体系，如异丙基醇／三氯化铝催化剂体系；用Lewis酸活化了的卤代金刚烷体系。利用叔-醇／Lewis酸催化体系合成的IIR的相对分子质量分布呈双峰，多卤代金刚烷／Lewis酸体系合成的IIR是四臂星形结构。新型催化剂的使用可以取得良好的经济效益和社会效益。
关键词：IIR；异丁烯；异戊二烯；催化剂；共聚
分类号：TQ336．1　文献标识码：A
文章编号：1000-890X(2000)02-0085-05

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收稿日期：1999-09-07