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- Title
Investigations of the characteristics and performance of modified polyethersulfones (PES) as membrane oxygenator.
- Authors
Mostafavi, Amir Hossein; Hosseini, Seyed Saeid
- Abstract
The modification of membrane oxygenators to minimize protein adsorption onto the surface is often accompanied by the loss of membrane performance. This study aims to explore polyethersulfone (PES) as a new material for membrane oxygenator applications and to assess its potentials. Accordingly, different modification techniques are applied to improve surface properties of PES membranes. To achieve this goal, two separate modification methods including incorporation of TiO2 into the membrane matrix as well as grafting polyethylene glycol (PEG) through oxygen plasma treatment are developed and the effects are examined. The results reveal that protein adsorption to the nanocomposite membrane containing 0.50 wt. % TiO2 and the grafted membrane decreased by 47 and 31%, respectively. In terms of performance, permeability and oxygen transfer rate of all modified membranes exceeded 808 GPU and 2.7 × 10−4 mol·m−2·s−1, respectively. Contact angle analysis revealed signs of hydrophilicity enhancement of membranes after modifications. The findings suggest that upon proper modifications, membranes based on PES could be considered as promising candidates for membrane oxygenator applications and deserves further investigations.
- Subjects
OXYGENATORS; OXYGEN plasmas; CONTACT angle; POLYETHYLENE glycol; SURFACE properties; POLYETHERSULFONE
- Publication
Journal of Polymer Engineering, 2021, Vol 41, Issue 7, p554
- ISSN
0334-6447
- Publication type
Article
- DOI
10.1515/polyeng-2021-0089