Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 406426
Title Modification methods for poly(arylsulfone) membranes: A mini-review focusing on surface modification
Author(s) Nady, N.; Franssen, M.C.R.; Zuilhof, H.; Mohy Eldin, M.S.; Boom, R.M.; Schroën, C.G.P.H.
Source Desalination 275 (2011)1-3. - ISSN 0011-9164 - p. 1 - 9.
Department(s) Food Process Engineering
Laboratory for Organic Chemistry
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) polyethersulfone ultrafiltration membranes - assisted graft-polymerization - polysulfone hollow fibers - fouling synthetic membranes - 2 aromatic polysulfones - natural organic-matter - low-temperature plasma - composite mf membrane - poly(ether sulfone) - hydroph
Abstract Surface modification of membranes is thought to be equally important to the membrane industry as membrane material and process development; surface functionalization has already become a key technology, the major aims being performance improvement (flux and selectivity) by reduction of unwanted protein fouling (often considered the first step for biofouling). Poly(arylsulfone) [i.e., Polysulfone (PSf) and poly(ethersulfone) (PES)] membranes have been widely used for separation and purification purposes. However, in many cases, nonspecific (protein) adsorption takes place on the membrane surface and in the membrane pores due to the inherent hydrophobic characteristics of poly(arylsulfone). Therefore several (surface) modification techniques for poly(arylsulfone) membranes have been developed. Given the importance of modification methods for these membranes and their operation, we decided to dedicate this mini-review solely to this topic. The modification methods can be divided into the following main groups: (1) coating, (2) blending, (3) composite, (4) chemical, (5) grafting, or (6) a combination of methods. With all these methods, interesting results were obtained concerning reduction of protein adsorption (see respective sections), although the quantification of improved performance is not straightforward. In the Section 4, all techniques are compared on various aspects such as flux after modification, simplicity, reproducibility, environmental aspects, and cost effectiveness.
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