聚丙烯粉料表面的紫外光和射线辐照接枝

以马来酸酐（ＭＡＨ）、丙烯酸（ＡＡ）、丙烯酸乙酯（ＥＡ）、丙烯酰胺（ＡＡ）为单体，对预氧化和未处理的聚丙烯（ＰＰ）粉进行固相光接枝、溶液光接枝，固相γ射线接枝以及γ射线预辐照溶液接枝，用ＦＴ－ＩＲ、ＥＳＣＡ和化学滴定法对接枝聚丙烯进行了定性和定量表征。结果表明，各单位均在聚丙烯表面发生了不同程度的接枝共聚。

Surface Grafting of Polypropylene Powder byUV-irradiation and y-irradiation

The pre-per-peroxidized and original polypropylene powders were grafted with monomers, including MAH, AA, EA and A, by using the methods of UV-irradiation solid phase or solutionphase grafting, r-irradiation solid phase grafting, andr-preirradiation solution grafting. Thegrafted PP was characterized by means of FT-IR, ESCA and Chemical titration qualitatively andquantitatively. The results showed that all monomers had grafted onto the polypropylene surfaceIn some extent.