title: Janus Membranes with Opposing Surface Wettability Enabling Oil-to-Water and Water-to-Oil Emulsification.
abstract: A Janus membrane with opposing wettability was first reported with both function of water-to-oil and oil-to-water emulsification. This membrane is conveniently fabricated by single-surface deposition of polydopamine/polyethylenimine (PDA/PEI). The asymmetric wettability can also reduce the transmembrane resistance during the process, indicating an economical and promising strategy to prepare various emulsions. This research opens a novel avenue for exploring and understanding the Janus membrane, and provides a perspective to design the asymmetric membrane structures with promoted performance in conventional membrane processes.
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Ming-Bang
authors.initials: MB
authors.lastname: Wu
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Hao-Cheng
authors.initials: HC
authors.lastname: Yang
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Jing-Jing
authors.initials: JJ
authors.lastname: Wang
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Guang-Peng
authors.identifier: http://orcid.org/0000-0001-8935-964X
authors.initials: GP
authors.lastname: Wu
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Zhi-Kang
authors.identifier: http://orcid.org/0000-0002-2261-7162
authors.initials: ZK
authors.lastname: Xu
keywords: Janus membrane; membrane emulsification; surface modification; surface wettability; transmembrane pressure