Amphiphilic Block Copolymer of Poly(dimethylsiloxane) and Methoxypolyethylene Glycols for High-Permeable Polysulfone Membrane Preparation
| Autor: | Fei Sun, Lei Zhang, Hai-Yin Yu, Jia-Shan Gu, Jin Zhou |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
General Chemical Engineering technology industry and agriculture General Chemistry Article Contact angle Chemistry chemistry.chemical_compound Membrane Chemical engineering chemistry Permeability (electromagnetism) Amphiphile Copolymer Steglich esterification Polysulfone Wetting QD1-999 |
| Zdroj: | ACS Omega ACS Omega, Vol 4, Iss 8, Pp 13052-13060 (2019) |
| ISSN: | 2470-1343 |
| DOI: | 10.1021/acsomega.9b00876 |
| Popis: | Poly(dimethylsiloxane)-block-methoxypolyethylene glycols (PDMS-b-mPEG) were synthesized by Steglich esterification. The high-permeable membrane (PSf/PDMS-b-mPEG) was prepared by using PDMS-b-mPEG as additives. The successful synthesis of PDMS-b-mPEG was confirmed by nuclear magnetic resonance. Field emission scanning electron microscopy images show that the distribution of finger-like macroporous and sponge-like macroporous can be modulated by controlling the ratio of the hydrophilic/hydrophobic components of additives. The distribution of additives and membrane wettability are validated with X-ray photoelectron spectroscopy and water contact angle test. The permeability of the blended membrane, especially for the membrane PSf/PDMS-b-mPEG1900 (M3), was remarkably improved. The water permeability of M3 (239.4 L/m2·h·bar) was 6.6 times that of the unblended membrane M0 (42.5 L/m2·h·bar). The findings of protein BSA filtration show that the flux recovery ratio of M3 is 89.2% at a BSA retention rate of about 80%, which demonstrates that the polysulfone membranes blended with PDMS-b-mPEG have excellent antifouling performance and extraordinary permeability. |
| Databáze: | OpenAIRE |
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