【作者】 葛学平； 汪谟贞； 王化； 袁强； 葛学武； 刘华蓉；

【Author】 GE Xue-ping,WANG Mo-zhen,WANG Hua,YUAN Qiang,GE Xue-wu,LIU Hua-rong (CAS Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei,230026,China)

【机构】 中国科学技术大学高分子材料科学与工程系中科院软物质化学重点实验室；

【摘要】 利用交联/磺化聚苯乙烯微球(CSP)为模板,经过γ-射线辐射乳液聚合,第一次制备出了核桃状多空聚合物微球。此类微球的形态可以通过CSP中的交联剂含量,CSP的磺化时间以及单体/CSP的质量比来控制。另外,由于此类微球有着较大的比表面积和较低的密度,并且表面有大量的磺酸基团存在,所以我们非常便利地将银纳米粒子附载到核桃状微球的表面。此类微球在功能性物质的附载方面将有着广阔的应用空间。更多还原

【Abstract】 Novel walnut-like multihollow polymer particles were first prepared byγ-ray radiation emulsion polymerization using the crosslinked and sulfonated polystyrene spheres(CSP) as the template.The formation process was studied in detail and the morphology of walnut-like multihollow polystyrene particles could be controlled by the content of crosslinking agent,sulfonation time of CSP particles and the weight ratio of monomer/CSP.In addition,an application of walnut multihollow polymer particles on bonding Ag nanoparticles onto the surface was achieved,which could be extended to other noble metal nanoparticles and could have wide range of potential applications,such as catalysts,sensors,solar cells and photonic crystals.更多还原