聚苯乙烯／多面体倍半硅氧烷纳米复合材料的性能  

Properties of Polystyrene/Polyhedral Oligomeric Silsesquioxane Nanocomposites

作　　者：宋晓艳[1] 程博闻[1] 

机构地区：[1]天津工业大学材料科学与化学工程学院,天津工业大学先进纺织复合材料教育部重点实验室,天津300160

出　　处：《高分子材料科学与工程》2009年第8期57-60,共4页Polymer Materials Science & Engineering

基　　金：科技部863项目(2007AA03Z359)

摘　　要：通过自由基本体聚合制备了新型聚苯乙烯/4-(2-二茂铁基乙烯基)-苯基-七异丁基多面体倍半硅氧烷(POSS1)纳米复合材料。X射线衍射(XRD)和透射电镜(TEM)结果表明,POSS1在质量分数为1%(文中出现的百分数均为质量分数)和3%POSS1的纳米材料中以分子级分散,而在5%POSS1的聚苯乙烯复合材料中,部分POSS1以晶体形式分散于聚苯乙烯基体中。热失重分析表明聚苯乙烯/POSS1纳米材料的热稳定性增加。与纯聚苯乙烯比较,聚苯乙烯/POSS1纳米材料的玻璃化转变温度得到明显提高,同时表现了较好的综合力学性能。Novel polystyrene （PS） composites containing 4- （ 2-ferrocenylvinyl ）-phenyl-heptaisobutyl ） polyhedral oligomerie silsesquioxane （POSS1） were prepared by bulk free radical polymerization. The dispersion quality of POSS1 in the matrix of polystyrene was characterized by X-ray diffraction （XRD） and transmission electron microscopy （TEM）. The results indicate that POSS1 is completely dispersed at molecular level in PS matrix when 1% and 3 % POSS1 is introduced, while some POSS1-rich nanopartieals are present when content of POSS1 is 5 %. Thermogravimetry analysis（TGA） data shows that the thermal stabilities of PS/POSS1 nanocomposites have been improved compared to neat The PS/POSS1 nanocomposites also display higher glass transition temperatures （Tg） in comparison with neat PS. Mechanical properties of the PS/POSS1 nanocomposites are improved compared to the neat PS.

关 键 词：聚苯乙烯 多面体倍半硅氧烷 纳米复合材料 二茂铁 

分 类 号：TB383[一般工业技术—材料科学与工程]