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采用无皂乳液聚合法制备了单分散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氧化铈(CeO2)微球。采用FT-IR,SEM,XRD等测试方法对P(St-HEA)微球单分散性及有序大孔CeO2微球结构和物相组成进行了表征。结果表明,制备的P(St-HEA)微球的单分散性及其胶体晶体微球结构较好,经500℃烧结得到的有序大孔CeO2微球其孔径约为250nm,且为立方萤石结构。
The monodispersed P (St-HEA) microspheres were prepared by soap-free emulsion polymerization, and then the microspheres of micron colloidal crystals were self-assembled in dimethylsilicone oil. Three-dimensional ordered macropores were prepared by sol-gel templating Cerium oxide (CeO2) microspheres. The monodispersity and ordered macroporous CeO2 microspheres structure and phase composition of P (St-HEA) microspheres were characterized by FT-IR, SEM and XRD. The results showed that the monodispersity of P (St-HEA) microspheres and the structure of colloidal crystal microspheres were better. The ordered macroporous CeO2 microspheres sintered at 500 ℃ had a diameter of about 250 nm, Stone structure.