聚苯乙烯/蒙脱土复合材料的制备及表征  

Preparation and Characterization of Polystyrene/Montmorillonite Composites

作　　者：陶瑞丽[1] 潘春跃[1] 高金环[1] 

机构地区：[1]中南大学化学化工学院功能有机高分子所,长沙410083

出　　处：《材料导报（纳米与新材料专辑）》2008年第3期120-123,共4页

摘　　要：用本体聚合法制备了聚苯乙烯/蒙脱土复合材料,通过FTIR对有机改性蒙脱土的结构进行了表征,用XRD表征了纳米复合材料的结构,用TGA、DTA表征了纳米复合材料的热稳定性。结果表明,聚苯乙烯可插层于含双键的咪唑盐表面活性剂改性的蒙脱土中,复合材料的热稳定性得到了较大的提高。The polystyrene/montmorillonite clay nanocomposites are successfully prepared via in situ bulk pol- ymerization. The structure of the organic modified montmorillonite is characterized by FTIR. The structure of the nanocomposites is characterized by the X-ray diffraction. The thermal stability of the nanocomposites is studied with thermogravimetric analyzer and differential thermal analysis. The results show that the molecular chains of polystyrene can be intercalated into the galleries of polymerizable imidazolium surfactant modified montmorillonite, and the thermal stability of the composites is highly improved.

关 键 词：有机粘土 聚苯乙烯 复合材料 咪唑季铵盐 本体聚合 

分 类 号：TQ424.25[化学工程] O64[理学—物理化学]