Quaternized polysulfones-based blends: Surface properties and performance in life quality and environmental applications

Development of new quaternized polysulfones-based blends, which possess multifunctionality, antibacterial, and sustainability fundamental characteristics, was performed as a result of membrane technology requirements. Therefore, solutions of ionic polysulfones (PSFQ) with a tunable content of cellul...

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Bibliographic Details
Published in:Polymer testing 2018-10, Vol.71, p.285-295
Main Authors: Filimon, Anca, Stoica, Iuliana, Onofrei, Mihaela Dorina, Bargan, Alexandra, Dunca, Simona
Format: Article
Language:English
Subjects:
Adhesion
Adhesion tests
Adhesion-wettability relationship
Antibacterial activity
Atomic force microscopy
Bacteria
Cellulose acetate
Computer architecture
Deactivation
Membrane permeability
Membranes
Microstructure
Mixtures
Permeability
Polysulfone resins
Polysulfone-based blends
Surface properties
Wastewater treatment
Water treatment
Workability
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Summary:Development of new quaternized polysulfones-based blends, which possess multifunctionality, antibacterial, and sustainability fundamental characteristics, was performed as a result of membrane technology requirements. Therefore, solutions of ionic polysulfones (PSFQ) with a tunable content of cellulose acetate phthalate (CAP) have been processed to obtain new membrane materials explored for wastewater treatment. The cumulative effects generated by the CAP versatile nature along with molecular functionalization of polysulfone were responsible for improving the workability, surface properties, and membranes performance, minimizing the adhesion of organic foulants/bacteria and maximizing the inactivation of bacterial cells. Additionally, the specific microarchitecture, determined using atomic force microscopy, represents excellent scaffolds as porous membranes. By evaluation of bacterial adhesion to surface, the practical applicability of membranes was tested, in order to clarify their suitability for life quality and environmental applications. The performed experiments represent the basis to future applications of these blends as membranes and confirm their performance in industrial field. [Display omitted] •New quaternized polysulfones-based blends were performed for membrane technology.•Membranes surface characteristics were controlled by adjusting the amount of CAP.•Applicability of membranes was tested by evaluation of bacterial adhesion to surface.•Performance of membranes in wastewater treatment was demonstrated.
ISSN:0142-9418
1873-2348
DOI:10.1016/j.polymertesting.2018.09.006