采用无皂乳液聚合法制备了纳米级单分散P（St-HEA）微球,然后在二甲基硅油中自组装形成微米级胶体晶体大球,利用溶胶-凝胶模板法制备了三维有序大孔Y2O3微球。采用红外光谱（FT-IR）,扫描电镜（SEM）,X射线衍射（XRD）等测试方法对P（St-HEA）微球单分散性及有序大孔Y2O3微球结构和物相组成进行了表征。结果表明,制备的P（St-HEA）微球的单分散性好,其粒径约为280 nm。以单分散P（St-HEA）微球自组装制备得到了微米级胶体晶体大球,胶体晶体大球中P（St-HEA）微球排列紧密有序,缺陷较少。以微米级胶体晶体大球为模板结合溶胶-凝胶法,经900℃烧结得到的有序大孔Y2O3微球,其孔径约为220 nm,其物相为纯相。
Monodispersed poly（styrene-hydroxyethyl acrylate）（P（St-HEA）） latex particles were prepared by soap-free emulsion polymerization,and the colloidal crystal balls consisting of monodisperse P（St-HEA） latex particles were prepared by utilizing a suspension system of silicone oil.The ordered macroporous Y2O3 microspheres were fabricated using colloidal crystal balls as sol-gel template.The monodispersity of the particles and the structure of ordered porous Y2O3 were analysed by Fourier transform infrared spectrum（FT-IR）,scanning electron microscope（SEM） and X-ray diffraction（XRD）.The results show that the sizes of the monodispersity of P（St-HEA） latex particles are about 280 nm.The colloidal crystal balls composed of P（St-HEA） latex particles possess better sphericity and order.The ordered porous Y2O3 microspheres with diameter of about 220 nm were fabricated when the P（St-HEA） spheres were removed by calcination at 900 ℃,and the crystalline of Y2O3 is pure phase.
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