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交联度对由聚合物共混物辐射交联而制备出的材料的性能影响很大,研究共混体系的辐射交联度和交联行为是十分重要的。通常,用溶胶分数与辐照剂量间的关系表征聚合物的交联度和交联行为。文献[2]发现线性聚合物的溶胶分数与辐照剂量间的关系与高分子链结构参数有关。本文试图考察共混体系的辐射交联行为是否也与高分子链结构有关,并将线性聚合物的关系式(1)推广应用到PEO/PVAc共混体系中。目前,有关这方面的研究工作还未曾见文献详细报道。
The degree of crosslinking has a great influence on the properties of the materials prepared by radiation crosslinking of the polymer blend. It is very important to study the radiation crosslinking degree and crosslinking behavior of the blend system. In general, the relationship between the sol fraction and the irradiation dose is used to characterize the degree of crosslinking and the crosslinking behavior of the polymer. Literature [2] found that the relationship between the sol fraction and the irradiation dose of the linear polymer is related to the structural parameters of the polymer chain. This article attempts to investigate whether the radiation crosslinking behavior of the blends is also related to the polymer chain structure, and the relationship (1) of the linear polymers is extended to the PEO / PVAc blends. At present, the research work in this area has not been reported in detail in the literature.