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题名: Morphology and performance of solvent-resistant nanofiltration membranes based on multilayered polyelectrolytes: Study of preparation conditions
作者: Li, Xianfeng1, 2;  Goyens, Ward1;  Ahmadiannamini, Pejman1;  Vanderlinden, Willem3, 4;  De Feyter, Steven3, 4;  Vankelecom, Ivo1
关键词: Membrane ;  Polyelectrolyte complexes ;  SRNF ;  Morphology ;  Layer-by-layer
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2010-08-15
DOI: 10.1016/j.memsci.2010.04.039
卷: 358, 期:1-2, 页:150-157
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: Multilayered polyelectrolyte complexes (PECs) were further explored as membranes for solvent-resistant nanofiltration (SRNF), with focus on their preparation conditions. Deposition of the polyelectrolytes (PE) was realized by a simple alternating adsorption of polycations and polyanions. Separations with the resulting membranes were optimized by varying the deposition conditions. Small ions (NaCl) were added to the PE dipping solutions to control the charge density and the configuration of the PE adsorbed, hence of the membrane morphology and performance. With addition of salt in PE coating solutions, more "loopy" or "tailed" PEs were adsorbed on the membrane support, resulting in thicker and looser PEC toplayers. With increasing NaCl concentration from 0 M to 0.5 M. the membranes showed an isopropyl alcohol (IPA) permeance from 0.06 to 0.98 L/(m(2) h bar) at very high Rose Bengal (1017 Da) retention. The resulting membranes showed comparable selectivity properties with commercial membranes, but with better solvent stability and higher fluxes. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: WEAK POLYELECTROLYTES ;  FILMS ;  ULTRATHIN ;  CONSTRUCTION ;  TRANSPORT ;  SOLUTES
语种: 英语
WOS记录号: WOS:000279277400018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142050
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Fac Bioengn Sci, B-3001 Louvain, Belgium
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
3.Katholieke Univ Leuven, Lab Photochem & Spect, Div Mol & Nanomat, B-3001 Louvain, Belgium
4.Katholieke Univ Leuven, INPAC, B-3001 Louvain, Belgium

Recommended Citation:
Li, Xianfeng,Goyens, Ward,Ahmadiannamini, Pejman,et al. Morphology and performance of solvent-resistant nanofiltration membranes based on multilayered polyelectrolytes: Study of preparation conditions[J]. JOURNAL OF MEMBRANE SCIENCE,2010,358(1-2):150-157.
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