中文摘要：

利用半频哪醇休眠基在热、光作用下的再引发特性,将带有半频哪醇休眠基的甲基丙烯酸缩水甘油酯低聚物（PGMA-BPH）与聚丙烯（PP）进行熔融接枝,从而在PP大分子链上引入反应性环氧基团,实现PP的功能化改性.初步探讨了接枝反应的机理和反应时间对接枝率的影响.通过FT-IR对接枝产物进行了表征,证实了接枝反应的发生.XRD和DSC的测试结果表明接枝PP的晶型由纯PP的α晶与β晶的混合体变为单纯的α晶型,并且其熔点、结晶度及结晶完善程度都有一定程度的提高.将所得接枝PP用作PP和尼龙6（PA6）的共混相容剂,分散相PA6的相畴尺寸明显减小,两相的相容性提高.

英文摘要：

A novel approach for functionalization of polypropylene （PP） is developed. Low-molecular-weight polymers of glycidyl methacrylate （PGMA） were grafted onto PP in the molten state, by means of reactivation of semipinacol dormant end groups on PGMA. The product was characterized by FT-IR, XRD and DSC measurements, The FT-IR spectra of the product confirmed the occurence of grafting. From the analysis of XRD and DSC data, it can be seen that the melting temperature, crystallinity and the degree of crystallinity of the grafted PP were all increased, relative to the values for pure PP. The grafting of PP led to the transformation from a mixture of α and β forms into the a form alone. The grafted PP can act as a reactive compatibilizer for PP/PA6 blends, and SEM micrographs of the blends showed that the PP-g-PGMA has a markedly enhanced miscibility in the PP/PA6 blend.