生物化工专题数据库-----纳米材料

[篇名]	纳米TiO 2/HPMC-PMMA-PBMA复合粒子的制备及表征
[著者]	孙益民；关明云
[机构]	安徽师范大学化学与材料科学学院，安徽 芜湖 241000
[中文关键词]	羟丙基甲基纤维素；正交实验；接枝共聚
[外文关键词]	hydroxypropyl methyl cellulose;orthogonal experiments;graft copolymerization
[分类号]	TB383
[刊名]	化学世界
[出版时间]	2005年2月
[来源]	VOL46,NO.1._75—78
[中文摘要]	先用离子型高聚物羟丙基甲基纤维素（HPMC）,和阴离子表面活性剂十二烷基硫酸钠(SDS)对纳米TiO 2进行表面处理，得到表面吸附有HPMC-SDS的纳米TiO 2粒子，然后在其上接枝了甲基丙烯酸甲酯(MMA)和甲基丙烯酸丁酯(BMA)。通过正交实验，得出了吸附和接枝的最佳条件。采用透射电子显微镜(TEM)和红外光谱仪(FTIR)对复合粒子的性质进行了表征，利用热重分析仪器对复合粒子的耐热性能进行了研究。
[外文摘要]	First the surface of titanium dioxide (TiO 2) nanoparticles was treated with a nonionic polymer hydroxypropyl methyl cellulose and an anionic surfactant sodium dodecyl sulphate.HPMC and SDS were adsorbed onto the surface of TiO 2 nanoparticles ,and then methyl methacrylate and butyl methacrylaate wera grafted on the surface.Using orthogonal design methon the optimum reaction condition were obtained.The properties of the composite particled were characterized by TEM and FTIR.In addition,the thermal properties of the composite material were investigated by thermogravimetric analysis(TGA).
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