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本文提出了一种解析乙烯-α-烯烃共聚物的~(13)C NMR谱的取代基效应方法,它揭示了存在于共聚物序列结构与~(13)C谱之间的对应关系,并对这种关系进行了系统的阐述。文章中首次按上述对应关系明显与否将共聚物~(13)C谱分成两类,并给出进行分类的三种判据:SCS参数,共单体均聚物的~(13)C谱,以及取代基的电性。文章最后比较了取代基效应方法与Grant-Paul方法的异同。
In this paper, we propose a substituent effect method for the ~ (13) C NMR spectroscopy of ethylene-α-olefin copolymers, revealing the correspondence between the structure of the copolymer sequences and the ~ (13) C spectrum and This relationship has been systematically elaborated. According to the above correspondence, the ~ (13) C spectra of copolymers were divided into two categories for the first time, and three criteria for classification were given: SCS parameters, ~ (13) C spectra of homopolymers homopolymers , As well as the electrical properties of the substituent. The article finally compares the similarities and differences between the substituent effect method and the Grant-Paul method.