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首页> 外文期刊>Journal of Applied Polymer Science >Some peculiar features of radiation grafting of monomers of various structures and reactivities onto polyolefins
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Some peculiar features of radiation grafting of monomers of various structures and reactivities onto polyolefins

机译：将各种结构和反应性的单体辐射接枝到聚烯烃上的一些特殊特征

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摘要

Some peculiar features were studied for radiation grafting of monomers of various structures and reactivities in radical polymerization onto polyolefins (polyethylene and polypropylene). From the point of view of the kinetics and mechanism of grafting, the monomers are divided into two classes: The first class includes all monomers active in radical polymerization. When irradiated together with the polymeric matrix, they are grafted onto it as long polymeric chains and parallel to this occurs homopolymerization. The second class includes nonactive or slightly active monomers for radical polymerization. They are characterized by the formation of single units or short grafted chains. The possibility to add nonactive monomers with high radiation chemical yields was demonstrated. A mechanism was proposed to explain high radiation yields for a number of nonactive monomers by transferring the radical state along and/or between polymer macromolecules. (C) 2000 John Wiley & Sons, Inc. [References: 16]
机译：研究了自由基聚合到聚烯烃（聚乙烯和聚丙烯）上的各种结构和反应性单体的辐射接枝的一些特殊功能。从接枝的动力学和机理的观点来看，单体分为两类：第一类包括在自由基聚合中有活性的所有单体。当与聚合物基体一起照射时，它们被接枝到其上，成为长聚合物链，并且与此平行的是发生均聚。第二类包括用于自由基聚合的非活性或微活性单体。它们的特征是形成单个单元或短接枝链。证明了添加具有高辐射化学产率的非活性单体的可能性。提出了一种机制，通过沿聚合物大分子之间和/或之间转移自由基状态来解释许多非活性单体的高辐射产率。 （C）2000 John Wiley＆Sons，Inc. [参考：16]

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