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归纳了测量丁基橡胶（IIR）不饱和度的方法，分别介绍了每种方法的工作原理，简单总结了各自的优缺点，为IIR的研发和生产中原料、中间体的控制分析和成品的规格分析提供指导。“,”The present methods of determining the unsaturation of butyl rubber was summarized , and the principles of each method respectively w as introduced ,and their advantages and disadvantages w ere summarized .