N-butylamine plasma modifying ultrafiltration polysulfone membranes

Some properties of ultrafiltration polysulfone membranes modified with n-BuNH 2 and n-BuNH 2/Ar plasmas were studied. Contact angle measurements, XPS and SEM were used to characterize the surface changes. Pore size estimation, water transport and filtration parameters helped to describe changes in f...

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Bibliographic Details
Published in:Desalination 2002-09, Vol.146 (1), p.293-299
Main Authors: Poźniak, Gryzelda, Gancarz, Irena, Bryjak, Marek, Tylus, Włodzimierz
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Exchange resins and membranes
Forms of application and semi-finished materials
Polymer industry, paints, wood
Pore size
Protein filtration
Surface character
Technology of polymers
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Summary:Some properties of ultrafiltration polysulfone membranes modified with n-BuNH 2 and n-BuNH 2/Ar plasmas were studied. Contact angle measurements, XPS and SEM were used to characterize the surface changes. Pore size estimation, water transport and filtration parameters helped to describe changes in filtration performance. Presence of argon in plasma environment stabilized plasma but made it more aggressive; pore size increased and surface etching took place. This plasma grafted a smaller number of nitrogen features — most of them in the form of amine. Excellent filtration performance was observed for BuNH 2/Ar plasma-modified membranes in an acidic environment.
ISSN:0011-9164
1873-4464
DOI:10.1016/S0011-9164(02)00490-3