Effect of Polyethersulfone Molecular Weight on Structure and Performance of Ultrafiltration Membranes

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	Effect of Polyethersulfone Molecular Weight on Structure and Performance of Ultrafiltration Membranes
	Zhou, C ; Hou, ZC ; Lu, XF ; Liu, ZY ; Bian, XK ; Shi, LQ ; Li, LA
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2010
卷号	49 期号:20 页码:10
ISSN号	0888-5885
通讯作者	Hou, ZC (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
英文摘要	Polyethersulfones (PES) with three different molecular weights were chosen to prepare ultrafiltration (UF) membranes by the nonsolvent induced phase separation method using polyvinylpyrrolidone (PVP) and N-methyl-2-pyrrolidone (NMP) as additive and solvent, respectively. The effect of PES molecular weight on the structure and performance of the prepared asymmetric membranes was investigated by means of UF experiments, measurements of membrane thickness and porosity, scanning electron microscopy, and the measurement of bursting strength, given fixed PVP or PES concentrations. It was found that increasing PES molecular weight would lead to a larger pore size in the skin layer but lower membrane porosity, and would result in membranes with higher strength, higher permeability, and lower rejection. Based on the experimental data of PES molecular weight, ternary phase diagram, and cast solution viscosity obtained from gel permeation chromatography, cloud point titration, and coaxial cylinder viscometer measurements, respectively, the underlying causes of membrane structures were accounted for from the combined perspective of thermodynamics and kinetics and polymer aggregate dimensions.
学科主题	Engineering
收录类别	SCI
语种	英语
WOS记录号	WOS:000282727300046
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/6898]
专题	上海应用物理研究所_中科院上海应用物理研究所2004-2010年
推荐引用方式 GB/T 7714	Zhou, C,Hou, ZC,Lu, XF,et al. Effect of Polyethersulfone Molecular Weight on Structure and Performance of Ultrafiltration Membranes[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2010,49(20):10.
APA	Zhou, C.,Hou, ZC.,Lu, XF.,Liu, ZY.,Bian, XK.,...&Li, LA.(2010).Effect of Polyethersulfone Molecular Weight on Structure and Performance of Ultrafiltration Membranes.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,49(20),10.
MLA	Zhou, C,et al."Effect of Polyethersulfone Molecular Weight on Structure and Performance of Ultrafiltration Membranes".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 49.20(2010):10.