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    Block copolymer/homopolymer dual-layer hollow fiber membranes

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    Type
    Article
    Authors
    Hilke, Roland
    Neelakanda, Pradeep
    Behzad, Ali Reza
    Nunes, Suzana Pereira cc
    Peinemann, Klaus-Viktor cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Advanced Nanofabrication, Imaging and Characterization Core Lab
    Biological and Environmental Sciences and Engineering (BESE) Division
    Chemical Engineering Program
    Core Labs
    Electron Microscopy
    Environmental Science and Engineering Program
    Nanostructured Polymeric Membrane Lab
    Physical Science and Engineering (PSE) Division
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2014-12
    Permanent link to this record
    http://hdl.handle.net/10754/563892
    
    Metadata
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    Abstract
    We manufactured the first time block copolymer dual-layer hollow fiber membranes and dual layer flat sheet membranes manufactured by double solution casting and phase inversion in water. The support porous layer was based on polystyrene and the selective layer with isopores was formed by micelle assembly of polystyrene-. b-poly-4-vinyl pyridine. The dual layers had an excellent interfacial adhesion and pore interconnectivity. The dual membranes showed pH response behavior like single layer block copolymer membranes with a low flux for pH values less than 3, a fast increase between pH4 and pH6 and a constant high flux level for pH values above 7. The dry/wet spinning process was optimized to produce dual layer hollow fiber membranes with polystyrene internal support layer and a shell block copolymer selective layer.
    Citation
    Hilke, R., Pradeep, N., Behzad, A. R., Nunes, S. P., & Peinemann, K.-V. (2014). Block copolymer/homopolymer dual-layer hollow fiber membranes. Journal of Membrane Science, 472, 39–44. doi:10.1016/j.memsci.2014.08.031
    Publisher
    Elsevier BV
    Journal
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2014.08.031
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.memsci.2014.08.031
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Advanced Membranes and Porous Materials Research Center; Environmental Science and Engineering Program; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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