摘要
采用种子乳液聚合法对纳米TiO2进行表面改性,将甲基丙烯酸甲酯包覆在纳米TiO2表面,形成TiO2/PMMA复合粒子。采用FT-IR、UV-Vis、XPS、TEM等分析手段对所得产物的表观形貌、所携带官能团、表面元素变化和在有机溶剂中的分散性等进行了表征。结果表明,复合粒子呈现核壳结构,粒子的团聚现象和分散性都得到改善,亲油性增强。
Surface modification of nano-TiO2 was realized via seed emulsion polymerization. Poly （methyl methacrylate） /Titanium Dioxide （TiO2/PMMA） composite particles were prepared by coating methyl methacrylate on the surface of nano-TiO2 particles. The morphology, surface functional groups, surface elements and dispersibility in organic solvent of the particles were characterized by FT- IR, XPS,UV-Vis, TEM. The result shows that the composite particles have a core-shell structure and the accumulation, dispersion and hydrophobic property are all improved.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2008年第11期47-50,共4页
Polymer Materials Science & Engineering
基金
四川省科技厅重点科技攻关项目(2006Z08-001-6)
