Cong Hailin, Yu Bing, Gao Lilong, Yang Bo, Gao Fei, Zhang Hongbo, Liu Yangchun
Institute of Biomedical Materials and Engineering, College of Chemistry and Chemical Engineering, Qingdao University Qingdao 266071 China
Laboratory for New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory, College of Materials Science and Engineering, Qingdao University Qingdao 266071 China.
RSC Adv. 2018 Jan 10;8(5):2593-2598. doi: 10.1039/c7ra13158e. eCollection 2018 Jan 9.
Microporous, hollow, or macroporous polymer spheres were prepared by a seed emulsion polymerisation method. Different from the conventional seeded emulsion polymerization, the sorbitan monooleate (Span 80) was added to the seeded emulsion polymerization. In this study, the monodisperse PS seeds prepared by dispersion polymerization were swelled by dibutyl phthalate (DBP), glycidyl methacrylate (GMA), divinylbenzene (DVB) and Span 80 successively. The effect of the amount of Span 80 on the morphology of microspheres was investigated. As different amount of Span 80 was added to the mixture, the poly(glycidyl methacrylate-divinylbenzene) (PGMA-DVB) microspheres showed a variety of morphologies containing microporous, hollow, and macroporous structure. In addition, uniform hollow particles with different pore size can be obtained through adjusting the amount of Span 80.
通过种子乳液聚合法制备了微孔、中空或大孔聚合物微球。与传统的种子乳液聚合不同，在种子乳液聚合中加入了失水山梨醇单油酸酯（Span 80）。在本研究中，通过分散聚合法制备的单分散聚苯乙烯（PS）种子依次用邻苯二甲酸二丁酯（DBP）、甲基丙烯酸缩水甘油酯（GMA）、二乙烯基苯（DVB）和Span 80进行溶胀。研究了Span 80用量对微球形态的影响。当向混合物中加入不同量的Span 80时，聚（甲基丙烯酸缩水甘油酯-二乙烯基苯）（PGMA-DVB）微球呈现出包含微孔、中空和大孔结构的多种形态。此外，通过调节Span 80的用量可以获得具有不同孔径的均匀中空颗粒。
