Fluorene-containing poly (arylene ether sulfone) block copolymers: Synthesis, characterization and application

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	Fluorene-containing poly (arylene ether sulfone) block copolymers: Synthesis, characterization and application
	Han, Guang Lu ; Xu, Pei Yu ; Zhou, Ke ; Zhang, Qiu Gen ; Zhu, Ai Mei ; Liu, Qing Lin ; Zhang QG(张秋根) ; Zhu AM(朱爱梅) ; Liu QL(刘庆林)
刊名	http://dx.doi.org/10.1016/j.memsci.2014.03.062
	2014-08-15
关键词	TERT-BUTYL ETHER ANION-EXCHANGE MEMBRANES ALKALINE FUEL-CELLS PERVAPORATION SEPARATION ULTRAFILTRATION MEMBRANE GAS SEPARATION MIXTURES PERFORMANCE POLYARYLETHERSULFONE
英文摘要	National Natural Science Foundation of China [21376194, 21076170]; Nature Science Foundation of Fujian Province of China [2010I0013]; Research fund for the Priority Areas of Development in Doctoral Program of Higher Education [20130121130006]; A series of poly (arylene ether sulfone) block copolymers with hydrophilic segments containing fluorene groups were successfully synthesized as confirmed by H-1 NMR. The molecular weights were measured in the range 115-140 kDa by gel permeation chromatography (GPC). The hydrophilic segment showed a helical structure due to fluorene with butterfly-shaped framework in the main chain. With incorporating imidazolium groups, the microphase separation can also be achieved between the hydrophilic and the hydrophobic moieties. The membrane structure was characterized by positron annihilation lifetime spectroscopy (PALS) and small angle X-ray scattering (SAXS). The block copolymers were used to prepare membranes successfully for pervaporation separation of methanol (MeOH)/methyl tert-butyl ether (MTBE) mixture. The correlation between the membrane microstructure and the separation performance was discussed thoroughly. By increasing the hydrophilic segment proportion, the permeation flux increased while the separation factor declined. The membranes have the highest permeation flux (0.334 kg m(-2)h(-1)) and the lowest separation factor (287) for a 15 wt% MeOH feed mixture at 40 degrees C, and the mass fraction of MeOH in the permeate is higher than 98 wt%. (C) 2014 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89233]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Han, Guang Lu,Xu, Pei Yu,Zhou, Ke,et al. Fluorene-containing poly (arylene ether sulfone) block copolymers: Synthesis, characterization and application[J]. http://dx.doi.org/10.1016/j.memsci.2014.03.062,2014.
APA	Han, Guang Lu.,Xu, Pei Yu.,Zhou, Ke.,Zhang, Qiu Gen.,Zhu, Ai Mei.,...&刘庆林.(2014).Fluorene-containing poly (arylene ether sulfone) block copolymers: Synthesis, characterization and application.http://dx.doi.org/10.1016/j.memsci.2014.03.062.
MLA	Han, Guang Lu,et al."Fluorene-containing poly (arylene ether sulfone) block copolymers: Synthesis, characterization and application".http://dx.doi.org/10.1016/j.memsci.2014.03.062 (2014).