一、引言近年来,非共轭双烯类化合物聚合成线型的、具有环型结构重复单位的高分子聚合物的环化聚合反应,引起了人们极大的兴趣和重视。这不仅因为环化聚合这一新型聚合反应的发现,在一定程度上突破了非共轭双烯化合物应聚合成具有交联结构的聚合物的传统观念,而且更重要的是,环化聚合物还具有许多特殊的性质,特别是具有较高的热稳定性。这样,环化聚合反应就为人们寻找热塑性的耐高温材料,提供了一个可能的途径。在很早以前,就知道了某些非共轭双烯化合物在 I. INTRODUCTION In recent years, the polymerization of linear conjugated non-conjugated diene compounds and the cyclopolymerization of macromolecule polymers with cyclic repeat units have aroused great interest and attention. This is not only due to the discovery of the new polymerization of cyclopolymerization that to some extent broke the traditional notion that non-conjugated diene compounds should be polymerized into polymers having a crosslinked structure and, more importantly, that the cyclized polymer Also has many special properties, especially with high thermal stability. In this way, the cyclization polymerization for people looking for thermoplastic high temperature materials, provides a possible way. A long time ago, we know that some non-conjugated diene compounds in