title: Preparation of highly permeable BPPO microfiltration membrane with binary porous structures on a colloidal crystal substrate by the breath figure method.
abstract: A highly permeable brominated poly(phenylene oxide) (BPPO) microfiltration membrane with binary porous structures was fabricated by combination of the breath figure and colloidal crystal template methods. The pore size in the bottom layer of the membrane was adjusted by the diameter of SiO2 microspheres in the colloidal crystal template, while the pore size in the top layer of the membrane was adjusted by varying the BPPO concentration in the casting solution. The permeability of the membrane cast on the colloidal crystal substrate was much higher than that of the membrane cast on a bare silicon wafer. The binary porous BPPO membrane with high permeability and antifouling property was used for microfiltration applications.
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao 266071, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Yuan
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao 266071, China; Laboratory for New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory, Qingdao University, China. Electronic address: yubingqdu@yahoo.com.
authors.forename: Bing
authors.initials: B
authors.lastname: Yu
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao 266071, China; Laboratory for New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory, Qingdao University, China. Electronic address: hailincong@yahoo.com.
authors.forename: Hailin
authors.initials: H
authors.lastname: Cong
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao 266071, China.
authors.forename: Qiaohong
authors.initials: Q
authors.lastname: Peng
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao 266071, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Yang
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao 266071, China.
authors.forename: Yongli
authors.initials: Y
authors.lastname: Luo
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao 266071, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Chi
keywords: Binary porous structures; Breath figure method; Brominated poly(phenylene oxide); Colloidal crystal template; Silica