TY - JOUR
T1 - Stability of polyethersulfone membranes to oxidative agents: a review
AU - Tsehaye, Misgina Tilahun
AU - Velizarov, Svetlozar
AU - Van der Bruggen, Bart
N1 - This research was financed by the scholarship of the European Commission-Education, Audiovisual and Culture Executive Agency (EACEA), under the program: Erasmus Mundus Master in Membrane Engineering - EM3E (FPA No 2011-0168, Edition I, http://em3e-4sw.eu).
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Polyethersulfone (PES) is one of the most commonly used polymers for preparation of ultrafiltration and nanofiltration membranes. However, oxidative degradation of PES-based membranes, which results from exposing the membranes to oxidative agents, is limiting their operational lifespan and possible areas of application. Despite the high need for a fundamental understanding of the detailed oxidative degradation mechanism(s) of PES membranes in order to improve the effectiveness of cleaning/disinfecting agents and/or develop PES membranes with a higher tolerance to oxidative agents, it still remains an insufficiently understood topic. Therefore, this review aims at analyzing and critically discussing the recent state-of-the-art on the degradation mechanisms of PES membranes, focusing on the effects of chlorine-based oxidants (mainly NaOCl) and H2O2. Strategies that can be useful for minimizing/preventing oxidative PES membranes attack are presented. Finally, further prospective study possibilities to fill in the existing research gaps in this area are highlighted.
AB - Polyethersulfone (PES) is one of the most commonly used polymers for preparation of ultrafiltration and nanofiltration membranes. However, oxidative degradation of PES-based membranes, which results from exposing the membranes to oxidative agents, is limiting their operational lifespan and possible areas of application. Despite the high need for a fundamental understanding of the detailed oxidative degradation mechanism(s) of PES membranes in order to improve the effectiveness of cleaning/disinfecting agents and/or develop PES membranes with a higher tolerance to oxidative agents, it still remains an insufficiently understood topic. Therefore, this review aims at analyzing and critically discussing the recent state-of-the-art on the degradation mechanisms of PES membranes, focusing on the effects of chlorine-based oxidants (mainly NaOCl) and H2O2. Strategies that can be useful for minimizing/preventing oxidative PES membranes attack are presented. Finally, further prospective study possibilities to fill in the existing research gaps in this area are highlighted.
KW - Degradation prevention
KW - Hydrogen peroxide
KW - Oxidative degradation mechanism
KW - Polyethersulfone membranes
KW - Sodium hypochlorite
UR - http://www.scopus.com/inward/record.url?scp=85053781770&partnerID=8YFLogxK
U2 - 10.1016/j.polymdegradstab.2018.09.004
DO - 10.1016/j.polymdegradstab.2018.09.004
M3 - Review article
AN - SCOPUS:85053781770
VL - 157
SP - 15
EP - 33
JO - Polymer Degradation and Stability
JF - Polymer Degradation and Stability
SN - 0141-3910
ER -