Selective swelling of polysulfone/poly(ethylene glycol) block copolymer towards fouling-resistant ultrafiltration membranes

Hao Yang; Jiemei Zhou; Zhaogen Wang; Xiansong Shi; Yong Wang

doi:10.1016/j.cjche.2019.03.011

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Selective swelling of polysulfone/poly(ethylene glycol) block copolymer towards fouling-resistant ultrafiltration membranes

Separation Science and Engineering | Updated：2026-01-06

- Selective swelling of polysulfone/poly(ethylene glycol) block copolymer towards fouling-resistant ultrafiltration membranes
- Chinese Journal of Chemical Engineering Vol. 28, Issue 1, Pages: 98-103(2020)
- Affiliations：
  
  State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University,Nanjing,China,211816
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.03.011
  CLC：
- Published：2020
- Accepted：
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Hao Yang, Jiemei Zhou, Zhaogen Wang, Xiansong Shi, Yong Wang. Selective swelling of polysulfone/poly(ethylene glycol) block copolymer towards fouling-resistant ultrafiltration membranes[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 98-103.
DOI：

Hao Yang, Jiemei Zhou, Zhaogen Wang, Xiansong Shi, Yong Wang. Selective swelling of polysulfone/poly(ethylene glycol) block copolymer towards fouling-resistant ultrafiltration membranes[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 98-103. DOI： 10.1016/j.cjche.2019.03.011.

摘要

Abstract

Fouling resistance of ultrafiltration (UF) membranes is critical for their long-term usages in terms of stable performance

so convenient approaches to prepare fouling-resistant membranes are always anticipated. Herein

we demonstrate the facile fabrication of antifouling polysulfone-

block

-poly(ethylene glycol) (PSF-

-PEG

SFEG) composite membranes. SFEG layer was coated onto macroporous supports and cavitated by immerging them in acetone/

-propanol following the mechanism of selective swelling induced pore generation. Thus-produced SFEG membranes possessed high permeance and excellent mechanical strength. Meanwhile

the structures and separation performances of the SFEG layers can be continuously tuned through simply changing swelling durations. More importantly

the hydrophilic PEG chains were spontaneously enriched onto the pore walls through swelling treatment

endowing intrinsic antifouling property to the SFEG membranes. Bovine serum albumin (BSA)/humic acid (HA) fouling tests proved the prominent fouling resistance of SFEG membranes

and the fouling resistance is expected to be long-standing because of the firm connection between PEG chai

ns and PSF matrix by covalent bonding.

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