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介绍了溴化丁基橡胶中不同的溴化结构形式,包括没有参与溴化反应的结构Ⅰ,以及溴化结构Ⅱ(Exomethyl Structure)和结构Ⅲ(Rearrange Structure)。其中,结构Ⅲ是结构Ⅱ的重排结构。这两种溴化结构在发生脱卤反应时会得到两种共轭双键结构,分别为结构Ⅳ(Exo-conjugated Diene)和结构Ⅴ(Endo-conjugated Diene)。着重对溴化丁基橡胶中的溴化结构对性能的影响进行了系统阐述,为提高溴化丁基橡胶的性能提供了借鉴与参考。
The different brominated structure forms of bromobutyl rubber are introduced, including the structure I not involved in bromination reaction, and the structure of Exomethyl Structure Ⅱ and Rearrange Structure Ⅲ. Among them, Structure III is the rearrangement structure of Structure II. The two brominated structures give two conjugated double bond structures in the dehalogenation reaction, which are respectively Exo-conjugated Diene and Endo-conjugated Diene. The influence of brominated structure on the properties of bromobutyl rubber was systematically described, which provided a reference for improving the properties of brominated butyl rubber.