Microstructures and performances of pegylated polysulfone membranes from an in situ synthesized solution via vapor induced phase separation approach

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	Microstructures and performances of pegylated polysulfone membranes from an in situ synthesized solution via vapor induced phase separation approach
	Zhu, Li-Jing; Song, Hai-Ming; Wang, Gang; Zeng, Zhi-Xiang; Zhao, Cun-Ting; Xue, Qun-Ji; Guo, Xiao-Ping
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2018
卷号	515 页码:152-159
关键词	Poly(Vinylidene Fluoride) Membranes Pes Ultrafiltration Membrane Chloramine Functional-groups B-pegma Membranes Antifouling Properties Surface Modification Polyethersulfone Membranes Nanofiltration Membranes Antibacterial Properties Biofouling Resistance
英文摘要	In situ pegylated (PEGylated) microporous membranes have been extensively reported using polyethylene glycol) (PEG)-based polymers as blending additives. Alternatively, free standing PEGylated polysulfone (PSf) membranes with excellent hydrophilicity and antifouling ability were directly fabricated from polysulfone/poly(ethylene glycol) methyl ether methacrylate (PSf/PEGMA) solutions after in situ cross linking polymerization without any treatment via vapor induced phase separation (VIPS) process for the first time. The microstructures and performances of the resulting membranes shifted regularly by adjusting exposure time of the liquid film in humid air. With increasing exposure time, plenty of worm-like networks formed and distributed on membrane surfaces, meanwhile cross-sectional morphology changed from asymmetric finger-like microporous structure to symmetric cellular-like structure, resulting in better mechanical stability. As the exposure time raised from 0 to 5 min, the surface coverage of carboxyl groups increased from similar to 1.1 to 4.0 mol%, leading to the decrease in water contact angle from similar to 63 to 27 degrees and the increase in water flux from similar to 110 to 512 L m(-2) h(-1). In addition, at prolonged exposure time, increasing hydrophilic PEG chains migrated to membrane surfaced and repelled the adsorption and deposition of protein, resulting in better antifouling ability. The findings of this study offer a facile and high efficient strategy for flexible design and fabrication of the in situ PEGylated membranes with desirable structures and performances in large scale. (C) 2018 Elsevier Inc. All rights reserved.
学科主题	Chemistry
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/16733]
专题	2018专题
推荐引用方式 GB/T 7714	Zhu, Li-Jing,Song, Hai-Ming,Wang, Gang,et al. Microstructures and performances of pegylated polysulfone membranes from an in situ synthesized solution via vapor induced phase separation approach[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,515:152-159.
APA	Zhu, Li-Jing.,Song, Hai-Ming.,Wang, Gang.,Zeng, Zhi-Xiang.,Zhao, Cun-Ting.,...&Guo, Xiao-Ping.(2018).Microstructures and performances of pegylated polysulfone membranes from an in situ synthesized solution via vapor induced phase separation approach.JOURNAL OF COLLOID AND INTERFACE SCIENCE,515,152-159.
MLA	Zhu, Li-Jing,et al."Microstructures and performances of pegylated polysulfone membranes from an in situ synthesized solution via vapor induced phase separation approach".JOURNAL OF COLLOID AND INTERFACE SCIENCE 515(2018):152-159.