中文摘要：

以过氧化二苯甲酰为引发剂,二甲苯为界面剂,采用超细聚丙烯（PP）颗粒进行接枝马来酸酐（MAH）的固相反应,制备出PP接枝MAH接枝聚合物（PP-g-MAH）;考察了单体加入量、界面剂加入量以及反应温度对接枝率（G_（MAH））的影响;将得到的具有不同G_（MAH）的接枝聚合物,作为相容剂用于PP和尼龙（PA）-66共混实验。采用FTIR,DSC,SEM等方法对聚合物及共混物进行了表征,并对共混物进行力学性能测试。实验结果表明,可制备出G_（MAH）高达2.91%的PP-g-MAH;PPg-MAH的GMAH越高,越有利于PP和PA-66相容性的提高,且共混体系表现出较好的力学性能;以G_（MAH）高的PP-g-MAH作为相容剂时,为达到相同力学性能和相容性,共混体系中所需要加入的相容剂数量就越少。

英文摘要：

The grafted polymer（PP-g-MAH） were prepared by solid phase graft reaction between polypropylene（PP） and maleic anhydride（MAH）,where PP particles were used as substrate,MAH as monomer,benzoyl peroxide as initiator and xylene as interfacial agent. The effects of addition amounts of monomer and interface agent,reaction temperature on the grafting ratio were investigated. The PP-g-MAHs with different grafting ratio were used as the compatibility agents for PP and PA-66 blends. The grafted polymers and blends were characterized by FTIR,DSC,SEM and the mechanical properties of the blends were also tested. The results showed that the highest grafting ratio was up to 2.91%. The higher grafted ratio of the PP-g-MAH,the better compatibility of PP and PA-66 and the less amount of compatilizer needed to achieve the same mechanical properties and compatibility.