以含悬挂羟基的聚丙烯为引发剂,辛酸亚锡为催化剂催化己内酯开环聚合,成功制备了一系列支链为聚己内酯的功能化接枝聚丙烯,并通过核磁共振、红外光谱、示差扫描量热(DSC)和广角X射线衍射(WAXD)等技术手段对聚合物进行了明确的结构表征.研究了反应温度和时间对接枝反应的影响,结果表明,最佳反应温度为90℃,通过改变接枝时间可以调控己内酯链段的长度.将成功接枝的功能化聚丙烯用做聚丙烯与尼龙石共混体系的增容剂,并通过扫描电子显微镜(SEM)观察的方法考察了该增容剂对共混体系的影响.SEM显示增容剂的加入显著地降低了界面张力,减小了分散相的尺寸,增强了界面的粘结性.
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