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题名:
Tailoring Membrane Surface Properties and Ultrafiltration Performances via the Self-Assembly of Polyethylene Glycol-block-Polysulfone-block-Polyethylene Glycol Block Copolymer upon Thermal and Solvent Annealing
作者: Wang, Ning1; Wang, Tao1; Hu, Yunxia1,2
刊名: ACS APPLIED MATERIALS & INTERFACES
ISSN号: 1944-8244
出版日期: 2017-09-13
卷号: 9, 期号:36, 页码:31018-31030
关键词: ultrafiltration ; membrane ; amphiphilic block copolymers ; self-assembly ; hydrophilicity ; antifouling
DOI: 10.1021/acsami.7b06997
产权排序: 第1完成单位
通讯作者: Hu, Yunxia(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol Shandong, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China)
英文摘要: Recently, ultrafiltration (UF) membranes have faced great challenges including the fine control of membrane surfaces for high filtration performances and antifouling properties in treating complex solution systems. Here, a particular type of amphiphilic block copolymer polyethylene glycol-block-polysulfone-block-polyethylene glycol (PEG-b-PSf-b-PEG) was synthesized through one-pot step-growth polymerization with mPEG [monomethylpoly(ethylene glycol)] as two ends to achieve the mobility of hydrophilic polymer chains. Without any other polymers or additives involved, the PEG-b-PSf-b-PEG triblock copolymer UF membrane was fabricated through the non-solvent-induced phase separation (NIPS) method. The surface properties and filtration performances of UF membranes were tailored through the self-assembly of PEG-b-PSf-b-PEG triblock copolymers combining the thermal and solvent annealing treatments in water at 90 degrees C for 16 h. The annealed PEG-b-PSf-b-PEG triblock copolymer membrane significantly enhanced its water flux resulting from the increased mean pore size with the improved porosity, as well as the decreased skin layer thickness, upon annealing. More importantly, the PEG-b-PSf-b-PEG triblock copolymer membrane surface turned from hydrophobic to hydrophilic upon annealing with the PEG enrichment on the surface, and exhibited improved protein antifouling performances. Our research opens a new avenue to tailor the membrane structure and surface properties by self-assembly of amphiphilic block copolymers upon thermal and solvent annealing treatments.
研究领域[WOS]: Science & Technology - Other Topics ; Materials Science
项目资助者: National Natural Science Foundation of China(21476249) ; Key Science and Technology Program of Shandong Province(2014GHY115021) ; Key Science and Technology Program of Yantai City(2015ZH063)
关键词[WOS]: INDUCED PHASE-SEPARATION ; THIN-FILMS ; MICROPHASE SEPARATION ; ISOPOROUS MEMBRANES ; FOULING RESISTANCE ; SELECTIVE LAYER ; COMB COPOLYMER ; HIGH-FLUX ; WATER ; OXIDE)
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000411043600086
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内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/23444
Appears in Collections:山东省海岸带环境工程技术研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol Shandong, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
2.Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China

Recommended Citation:
Wang, Ning,Wang, Tao,Hu, Yunxia. Tailoring Membrane Surface Properties and Ultrafiltration Performances via the Self-Assembly of Polyethylene Glycol-block-Polysulfone-block-Polyethylene Glycol Block Copolymer upon Thermal and Solvent Annealing[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(36):31018-31030.
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