原位水解法聚丙烯酸酯/纳米二氧化硅复合乳液的性能研究  

Study of the Properties of Poly Acrylate /Silica Nano Composites Prepared by Emusion Polymerization In-siut Hydrolysation Method

作　　者：李敬玮[1] 夏宇正[1] 石淑先[1] 焦书科[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《胶体与聚合物》2002年第4期24-27,共4页Chinese Journal of Colloid & Polymer

摘　　要：将甲基丙烯酸羟乙酯(HEMA)与硅酸四乙酯经酯交换制得的二甲綦丙烯酰氧基硅酸二乙酯与丙烯酸酯进行乳液聚合,制得了不同硅酸酯用量的稳定聚丙烯酸酯/纳米二氧化硅复合乳液。利用红外光谱、透射电镜、差热扫描及热失重对乳胶膜进行了分析表征。结果表明,利用乳液聚合可以获得原位水解并稳定分散的聚丙烯酸酯/纳米二氧化硅复合乳液,二氧化硅的存在可提高材料的热性能。In this paper, the un-saturation monomer containing silica synthesized by the ester exchange reaction of 2-hydrxyethyl acrylate with silicon tetraethyl ester was copolymerized with acrylates by emulsion polymerization. During the polymerization, The branch containing silica was hydrolyzed to form nano SiO2.. The properties of this nano composites was studied by infrared(lR), transmission electron microscopy(TEM), differential scanning calorimetry(DSC) and TG. All the results showed that polyacrylate/silicon dioxide latex composites in nanoscale were prepared by emulsion method and the thermal properties of material was increased.

关 键 词：原位水解法 聚丙烯酸酯 纳米二氧化硅 复合乳液 性能 研究 乳液聚合 

分 类 号：O632.52[理学—高分子化学] O631[理学—化学]