Preparation of a highly permeable ordered porous microfiltration membrane of brominated poly(phenylene oxide) on an ice substrate by the breath figure method
Preparation of a highly permeable ordered porous microfiltration membrane of brominated poly(phenylene oxide) on an ice substrate by the breath figure method
复制标题
呼吸图法制备冰基溴化聚苯醚高渗透有序多孔微滤膜
DOI：
10.1039/c2sm25706h
复制
发表时间：
2012-01-01
期刊：
影响因子：
3.4
通讯作者：
Tang, Jianguo
中科院分区：
文献类型：
--
作者：
Cong, Hailin;Wang, Jilei;Tang, Jianguo
采用呼吸图法在冰基底上成功制备了高渗透性的溴化聚苯醚（BPPO）有序多孔微滤膜。研究了聚合物浓度和基材材料对形成的多孔结构的影响。随着浇铸溶液中聚合物浓度的增加，形成的膜的孔径减小。浇铸在冰基底上的膜的渗透性比浇铸在玻璃基底上的膜的渗透性高得多，因为形成的冰/水界面不仅加速了水滴的凝结，而且有助于水滴在重力作用下穿过BPPO浇铸溶液。具有高渗透性的有序多孔BPPO膜不仅用于微滤，还用于制造功能性微结构。
A highly permeable ordered porous microfiltration membrane of brominated poly(phenylene oxide) (BPPO) was prepared successfully on an ice substrate using the breath figure method. The effects of polymer concentration and substrate material on the formed porous structures were studied. As the polymer concentration in the casting solution increased, the pore size in the formed membrane decreased. The permeability of the membrane cast on the ice substrate was much higher than that of the membrane cast on a glass substrate, because the formed ice/water interface not only sped up condensation of water droplets, but also helped the water droplets run through the BPPO casting solution under gravity. The ordered porous BPPO membrane with high permeability was not only used for microfiltration, but also used for fabrication of functional microstructures.