Development of a novel radiation-induced grafting technique using ultraviolet light irradiation

研究了紫外光照射对聚丙烯辐射接枝聚合产率的影响。X射线和紫外线连续照射的聚合物的产额比只用X射线照射的聚合物的产额要高。作者在前人研究的基础上，提出了紫外光提高产率的机理，认为提高产率的原因是烃类聚合物自由基光诱导异构化。

The effect of ultraviolet (UV) light illumination on the yield of radiation-induced graft polymerization onto polypropylene was examined. The yield observed for the polymer irradiated successively with X-ray and UV was found to be higher than that observed for the polymer irradiated only with X-ray. The author proposed a mechanism of the yield improvement caused by UV illumination on the basis of the present and previous studies; the improvement is caused by thephoto-induced isomerization of hydrocarbon polymer radicals.