近些年来,随着纳米技术的发展,出现了很多微纳米反应器,该反应器能够提供具有纳米尺寸的反应环境,使得在该环境下进行的反应受到纳米空间的影响,生成具有纳米效应或特殊结构的产物。在聚烯烃催化聚合中,也出现很多具有受限空间的微纳米反应器载体,这些载体不仅能够负载烯烃催化剂,还能为烯烃聚合反应提供受限空间环境。在纳米尺度效应的影响下,催化烯烃聚合进程发生变化,可以得到一些具有特殊结构与性能(比如高熔点、超高分子量、纤维状)的聚烯烃产物。本文总结现阶段受限空间下烯烃聚合研究的最新成果,主要根据聚合物的不同结构进行分类,分别介绍了受限空间对聚烯烃产物的形貌、反应动力学及活性、初级结构、二级结构和凝聚态结构及性能的影响,并对受限聚合研究的发展趋势进行了展望。
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