摘要
在超声波辅助下通过微乳液聚合法制备出纳米PS微球，利用重力沉降法制备出聚苯乙烯胶晶阵列，以该阵列为大孔模板制备出大孔一介孔分级炭材料，利用激光粒度仪、场发射扫描电镜、红外和N2物理吸附及解吸附技术对产品的形貌、微观结构及性能进行表征与研究，结果表明，采用超声波辅助微乳液聚合可实现粒径在50nm-500nm范围内聚苯乙烯纳米球的可控制备，增大KPS和PVP用量，PS粒径均会变小，St／SDSN要有适合的比例才能保证PS粒径小且单分散均一。
The nona-PS microspheres were polymerized by ultrasound-assisted micro-emulsion polymerization, and then polystyrene colloidal crystal arrays were made by gravity settling method. The hierarchical macro-mesoporous carbon （HMMC） materials were prepared with the array as macroporous tempelate agent. The morphology, microstructure and properties of the products were characterized by laser particle size analyzer, field emission scanning electron microscopy, and infrared and N2 adsorption and desorption technology. The results show that ultrasonic assisted controlled polystyrene nano-sphere particles size in the range of 50nm^500nm. with the dosage increase of KPS and PVP, PS particles size be- come smaller. However, in order to ensure small particles size and good monodisperse, St/SDS have a suitable ratio.
基金
国家自然科学基金项目（No.21276207）,教育部重点项目（No.212175）
关键词
聚苯乙烯微球
微乳液聚合
超声波辐照
模板剂
多孔炭材料
polystyrene microspheres
micro-emulsion polymerization
ultrasonic irradiation
template agent
porous car-bon materials
