中文摘要：

以接枝到聚丁二烯链的马来酸酐为反应活性点，与端羟基聚甲基丙烯酸丁酯进行酯化反应，合成了大分子表面改性剂-聚丁二烯／聚甲基丙烯酸丁酯接枝共聚物。探索了接枝反应的规律，采用IR、^1H NMR、TGA、ATR-FTIR等方法研究了接枝共聚物的结构和性能。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。

英文摘要：

A novel macromolecule surface modifier, polybutadiene grafted poly （butyl methylacrylate） was synthesized by esterification of maleated polybutadiene with monohydroxyl-terminated poly （butyl methylacrylate）.The effects of reaction conditions were investigated. The graft copolymers were characterized by chemical titration, IR, ^1H NMR, and TGA. The copolymers were used to blend with polypropylene to modify the surface hydrophilicity of the products. 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.