作　　者： ; ; ; ; ; ;

机构地区： 华南理工大学化学与化工学院

出　　处： 《高分子材料科学与工程》 2011年第1期142-145,共4页

摘　　要： 以非离子表面活性剂(嵌段聚合物P123)为模板剂,ZrOCl2.8H2O和Ce(NO3)3.6H2O为原料,运用水热合成法合成出稀土金属氧化物CeO2-ZrO2固溶体多孔结构材料,选择硅烷偶联剂KH570对其表面进行改性后采用悬浮聚合法制备出CeO2-ZrO2-PMMA杂化材料。利用X射线衍射(XRD),N2吸附-脱附,红外光谱,扫描电镜对材料的结构和形态进行了表征,对CeO2-ZrO2-PMMA杂化材料的热性能进行了测定。结果表明CeO2-ZrO2固熔体的比表面积达到125.8724m2/g,CeO2-ZrO2-PMMA杂化材料表面呈一定的疏松结构,热分解温度为366℃,高于纯PMMA的热分解温度,拥有较好的耐热性和抗热震性能。 Cerium-zirconium mixed oxide porous materials were synthesized after calcinations by the way of using block copolymers P123 as templates,zirconium chloride octahydrate（ZrOCl2·8H2O） and cerium nitrate hexahydrate（Ce（NO3）3·6H2O） as raw materials.The CeO2-ZrO2-PMMA hybrid materials were prepared by suspension polymerization after modification of CeO2-ZrO2 surface by γ-methacyloxypropyl trimethoxy silane.The characteristics of samples were investigated by using XRD,N2 adsorption-desorption,infrared spectrum and SEM.The result indicates the specific surface area of Cerium-zirconium mixed oxide porous materials is 125.8724 m2/g and the heat decomposition temperature of CeO2-ZrO2-PMMA reaches 366 degrees Celsius,which is higher than that of pure PMMA.The CeO2-ZrO2-PMMA hybrid materials have potential applications in anti-temperature and anti-thermal stress area.

关 键 词： 嵌段聚合物 多孔材料 稀土铈锆氧化物 聚甲基丙烯酸甲酯

领　　域： [化学工程]