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dc.contributor.authorHan, Guang Luzh_CN
dc.contributor.authorXu, Pei Yuzh_CN
dc.contributor.authorZhou, Kezh_CN
dc.contributor.authorZhang, Qiu Genzh_CN
dc.contributor.authorZhu, Ai Meizh_CN
dc.contributor.authorLiu, Qing Linzh_CN
dc.contributor.author张秋根zh_CN
dc.contributor.author朱爱梅zh_CN
dc.contributor.author刘庆林zh_CN
dc.date.accessioned2015-07-22T03:21:07Z
dc.date.available2015-07-22T03:21:07Z
dc.date.issued2014-08-15zh_CN
dc.identifier.citationJOURNAL OF MEMBRANE SCIENCE, 2014,464:72-79zh_CN
dc.identifier.otherWOS:000336459400008zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/89233
dc.descriptionNational 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]zh_CN
dc.description.abstractA 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.zh_CN
dc.language.isoen_USzh_CN
dc.publisherELSEVIER SCIENCE BVzh_CN
dc.source.urihttp://dx.doi.org/10.1016/j.memsci.2014.03.062zh_CN
dc.subjectTERT-BUTYL ETHERzh_CN
dc.subjectANION-EXCHANGE MEMBRANESzh_CN
dc.subjectALKALINE FUEL-CELLSzh_CN
dc.subjectPERVAPORATION SEPARATIONzh_CN
dc.subjectULTRAFILTRATION MEMBRANEzh_CN
dc.subjectGAS SEPARATIONzh_CN
dc.subjectMIXTURESzh_CN
dc.subjectPERFORMANCEzh_CN
dc.subjectPOLYARYLETHERSULFONEzh_CN
dc.titleFluorene-containing poly (arylene ether sulfone) block copolymers: Synthesis, characterization and applicationzh_CN
dc.typeArticlezh_CN


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