文献类型：期刊文献

英文题名：A novel approach for preparation of "cage-like" multihollow polymer microspheres through sulfonated polystyrene particles

作者：Ge, Xueping;Ge, Xuewu[1];Wang, Mozhen[1];Liu, Huarong[1];Fang, Bin[2];Li, Zhi[2];Yang, Cunzhong[2];Li, Guang[3]

机构：[1]Univ Sci & Technol China, Dept Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, Hefei 230026, Anhui, Peoples R China;[2]E China Univ Sci & Technol, Inst Nucl Technol & Applicat, Sch Sci, Shanghai 200237, Peoples R China;[3]Liaocheng Univ, Coll Mat Sci & Engn, Liaocheng 252000, Shandong, Peoples R China

年份：2012

卷号：290

期号：17

起止页码：1749

外文期刊名：COLLOID AND POLYMER SCIENCE

收录：;EI(收录号：20124515638413);WOS:【SCI-EXPANDED(收录号:WOS:000310319000004)】；

基金：This work was financially supported by the National Natural Science Foundation of China (nos. 51073146, 51103143, 51103039, and 51173175) and Program for Outstanding Young Teachers of ECUST (no. YK0157134).

语种：英文

外文关键词：Cage-like; Multihollow; Phase separation; Polymer microspheres; Sulfonated polystyrene

摘要：A new and effective process has been developed for fabrication of novel cage-like multihollow polymer particles by using sulfonated polystyrene (SP) particles as the templates, with heptane as the phase separation agent, in an ethanol/water medium. The ratio of water/ethanol and the heating temperature play important roles in the formation of these multihollow particles. It was found that the cage-like polymer particles could be obtained when the ratio of ethanol/water is 5:5 (w/w), with a temperature above 50 A degrees C. After a detailed study, the formation mechanism was proposed based on an SP swollen (ethanol and heptane penetrating process) and phase separation process. This new method for fabricating the cage-like multihollow polymer particles has a great meaning not only on confirming the formation mechanism, but also on providing an effective way to prepare the special hollow core/porous shell polymer particles, which could have wide range of potential applications, such as catalysts, sensors, and drug release.