CAJ | 학술논문

在乙醇/水的混合溶液中,采用聚乙烯吡咯烷酮（PVP）为分散剂,偶氮二异丁腈（AIBN）为引发剂,通过分散聚合法制备出聚苯乙烯（PS）微球。然后以微球为模板,PS粒子作为核,SiO_2作为壳,在600℃时经过热分解得到SiO_2空心球。通过热分析仪、扫描电子显微镜对制得的空心球进行了表征和分析,并讨论其影响因素。
재을순/수적혼합용액중,채용취을희필각완동（PVP）위분산제,우담이이정정（AIBN）위인발제,통과분산취합법제비출취분을희（PS）미구。연후이미구위모판,PS입자작위핵,SiO_2작위각,재600℃시경과열분해득도SiO_2공심구。통과열분석의、소묘전자현미경대제득적공심구진행료표정화분석,병토론기영향인소。
PS spheres were prepared using PVP as the stabilizer and AIBN as the initiator in ethanol/water medium by dispersion polymerization method.Hollow silica spheres,which were composited with PS as a core and silica as the shell were prepared by using polystyrene（PS） as a templete,wrere obtained in a following step by thermal degradation of the PS cores at 600°C.Thermogravimetric analysis and SEM were used to characterize the monodispersed hollow silica spheres.Influence factors were analyzed.