聚丁二烯/聚甲基丙烯酸丁酯接枝共聚物的合成及表征  

Synthesis and Characterization of Polybutadiene-grafted-Poly(Butyl Methylacrylate) Copolymers

作　　者：陈汉佳[1] 祝亚非[2] 张艺[1] 许家瑞[1] 

机构地区：[1]中山大学化学与化学工程学院∥聚合物复合材料与功能材料教育部重点实验室 [2]中山大学测试中心,广东广州510275

出　　处：《中山大学学报（自然科学版）》2006年第4期54-57,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(50273048);教育部博士点专项科研基金资助项目(20010558002);中山大学校长基金资助项目

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。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.

关 键 词：聚丁二烯 端羟基聚甲基丙烯酸丁酯 大分子表面改性剂 ATR-FTIR 

分 类 号：O632[理学—高分子化学]