The results of TGA and ATR-FTIR indicated that PB-g-PBMA diffused preferably towards the surface of the blends and was suitable as an effective macromolecular surface modifier for PP.

• 结果表明:该大分子改性剂具有良好的热稳定性和择优外迁特性,在共混物表面层中呈现明显的浓度梯度,是PP的优良共混添加型大分子表面改性剂。