Antifouling enhancement of polyacrylonitrile-based membrane grafted with poly(sulfobetaine methacrylate) layers
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Jianlong Hu
and
Xiang Shen
Abstract
In this work, zwitterionic polyacrylonitrile (PAN)-based membranes were synthesized via surface grafting strategy for improving the antifouling properties. The copolymer membrane consisting of PAN and poly(hydroxyethyl methacrylate) segments, was cast via nonsolvent induced phase separation, and then treated with acryloyl chloride to tether with carbon-carbon double bonds. Zwitterionic poly(sulfobetaine methacrylate) (PSBMA) layers were grafted onto membrane surface via concerted reactions of radical grafting copolymerization and quaternization with 2-(dimethylamino)ethyl methacrylate) and 1, 3-propanesultone (1, 3-PS) as the monomers. The grafting degree (GD) of PSBMA layers increases with the incremental content of monomers, leading to the enhancement in membranes surface hydrophilicity. The permeation experiments show that the flux of the zwitterionic membrane increases and then decreases with the increasing GD value, because of the surface coverage of PSBMA layers. The zwitterionic membrane has excellent separation efficiency for oil-in-water emulsion, with the rejection of a higher value than 99%. The irreversible membrane fouling caused by oil adsorption has been suppressed, as proved by the cycle-filtration tests. These outcomes confirm that oil-fouling resistances of membranes are improved obviously by the surface grafting of zwitterionic PSBMA layers.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51703118
Funding source: Yunnan Local Colleges Research Projects of China
Award Identifier / Grant number: 2019FH001-006
Funding source: Yunnan Reserve Talents for Young and Middle-aged Leaders in Academic and Technical Fields
Award Identifier / Grant number: 2019HB059
Funding source: Innovation Training Program of Chinese College Students
Award Identifier / Grant number: 202010684019 and 202010684028
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work is financed by the National Natural Science Foundation of China (grant no. 51703118), Yunnan Local Colleges Research Projects of China (grant no. 2019FH001-006), Yunnan Reserve Talents for Young and Middle-aged Leaders in Academic and Technical Fields (2019HB059) and Innovation Training Program of Chinese College Students (grant nos. 202010684019 and 202010684028). We also appreciate the financial support from Yunnan Top Young Talents of Ten Thousand Talents Program.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/polyeng-2021-0112).
© 2021 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
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Articles in the same Issue
- Frontmatter
- Material properties
- Investigation of the silica pore size effect on the performance of polysulfone (PSf) mixed matrix membranes (MMMs) for gas separation
- Understanding thermal and rheological behaviors of bimodal polymethyl methacrylate (BPMMA) fabricated via solution blending
- Kinetic study of the pyrolysis of polypropylene over natural clay
- Investigation of morphology and transport properties of Na+ ion conducting PMMA:PEO hybrid polymer electrolyte
- Preparation and assembly
- Designing of new hydrophilic polyurethane using the graft-polymerized poly(acrylic acid) and poly(2-(dimethylamino)ethyl acrylate)
- Water-soluble polymeric particle embedded cryogels: Synthesis, characterisation and adsorption of haemoglobin
- Durable anti-oil-fouling superhydrophilic membranes for oil-in-water emulsion separation
- A facile route to dual-crosslinking polymeric hydrogels with enhanced mechanical property
- Antifouling enhancement of polyacrylonitrile-based membrane grafted with poly(sulfobetaine methacrylate) layers
- Engineering and processing
- Non-isothermal blade coating analysis of viscous fluid with temperature-dependent viscosity using lubrication approximation theory
- In-mold lightweight integrating for structural/functional devices
