制备具有双孔结构的口袋状微滤膜。

Preparation of pocket shaped microfiltration membranes with binary porous structures.

机构信息

Institute of Biomedical Materials and Engineering, College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.

出版信息

Soft Matter. 2018 Oct 31;14(42):8660-8665. doi: 10.1039/c8sm01637b.

DOI:10.1039/c8sm01637b

PMID:30328880

Abstract

Highly permeable pocket-shaped microfiltration membranes with binary porous structures, which are composed of brominated poly(2,6-dimethyl-1,4-phenylene oxide) (BPPO), were prepared on needles by breath figure (BF) and colloidal crystal template (CCT) methods. In colloidal crystal templates, the membrane pore size in the bottom layer was adjusted by SiO2 microsphere diameter in the colloidal crystal template, while that in the top layer was adjusted by changing the BPPO concentration. The permeability of the binary porous membrane prepared by BF and CCT methods was higher than that of membranes only prepared by the BF method. Due to high permeability and antifouling properties, the pocket shaped binary porous membrane was connected to a syringe and used as a filter film in microfiltration and sample preparation fields.

摘要

采用呼吸图案（BF）和胶体晶体模板（CCT）法在针上制备了具有双孔结构的高渗透性口袋状微滤膜，该膜由溴化聚（2,6-二甲基-1,4-亚苯基氧化物）（BPPO）组成。在胶体晶体模板中，通过胶体晶体模板中的 SiO2 微球直径调节底层的膜孔径，而通过改变 BPPO 浓度调节顶层的膜孔径。通过 BF 和 CCT 方法制备的双孔膜的渗透性高于仅通过 BF 方法制备的膜。由于具有高渗透性和抗污染性，口袋状双孔膜与注射器相连，用作微滤和样品制备领域的过滤膜。