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Preparation and performance of cellulose acetate/polyethyleneimine blend microfiltration membranes and their applications; Preparation and performance of cellulose acetate/polyethyleneimine blend microfiltration membranes and their applications
Chen, ZA; Deng, MC; Yong, C; He, GH; Ming, W; Wang, JD
关键词Polyethyleneimine Polyethyleneimine Blend Membrane Blend Membrane Crosslink Crosslink Surface Modification Surface Modification Adsorptive Membrane Adsorptive Membrane
刊名JOURNAL OF MEMBRANE SCIENCE ; JOURNAL OF MEMBRANE SCIENCE
2004-06-01 ; 2004-06-01
DOI10.1016/j.memsci.2004.01.024 ; 10.1016/j.memsci.2004.01.024
235期:1-2页:73-86
收录类别SCI ; SCI
文章类型Article ; Article
项目归属天邦公司 ; 天邦公司
产权排名1;1 ; 1;1
WOS标题词Science & Technology ; Science & Technology ; Technology ; Technology ; Physical Sciences ; Physical Sciences
类目[WOS]Engineering, Chemical ; Engineering, Chemical ; Polymer Science ; Polymer Science
研究领域[WOS]Engineering ; Engineering ; Polymer Science ; Polymer Science
关键词[WOS]HOLLOW-FIBER MEMBRANES ; HOLLOW-FIBER MEMBRANES ; AFFINITY MEMBRANE ; AFFINITY MEMBRANE ; ENDOTOXIN REMOVAL ; ENDOTOXIN REMOVAL ; ADSORPTION ; ADSORPTION ; POLYETHYLENEIMINE ; POLYETHYLENEIMINE ; SEPARATION ; SEPARATION ; CHROMATOGRAPHY ; CHROMATOGRAPHY ; PURIFICATION ; PURIFICATION ; ADSORBERS ; ADSORBERS ; SHEET ; SHEET
英文摘要A modified microfiltration membrane has been prepared by blending a matrix polymer with a functional polymer. Cellulose acetate (CA) was blended with polyethyleneimine (PEI), which was then crosslinked by polyisocyanate, in a mixture of solvents. In the membrane, PEI can supply coupling sites for ligands in affinity separation or be used as ligands for metal chelating, removal of endotoxin or ion exchange. The effects of the time of phase inversion induced by water vapor, blended amount of PEI and amount of crosslinking agent on membrane performance were investigated. The prepared blend membranes have specific surface area of 12.04-24.11 m(2)/g and pure water flux (PWF) of 10-50 ml/cm(2) min with porosity of 63-75%. The membranes, made of 0.15 50 wt.% PEI/CA ratio and 0.5 crosslinking agent/PEI ratio, were applied to adsorbing Cu2+ and bovine serum albumin (BSA) individually. The maximum adsorption capacity of Cu2+ ion on the blend membrane is 7.42 mg/g dry membrane. The maximum adsorption capacities of BSA on the membranes with and without chelating Cu2+ ion are 86.6 and 43.8 mg/g dry membrane, respectively. (C) 2004 Elsevier B.V. All rights reserved.; A modified microfiltration membrane has been prepared by blending a matrix polymer with a functional polymer. Cellulose acetate (CA) was blended with polyethyleneimine (PEI), which was then crosslinked by polyisocyanate, in a mixture of solvents. In the membrane, PEI can supply coupling sites for ligands in affinity separation or be used as ligands for metal chelating, removal of endotoxin or ion exchange. The effects of the time of phase inversion induced by water vapor, blended amount of PEI and amount of crosslinking agent on membrane performance were investigated. The prepared blend membranes have specific surface area of 12.04-24.11 m(2)/g and pure water flux (PWF) of 10-50 ml/cm(2) min with porosity of 63-75%. The membranes, made of 0.15 50 wt.% PEI/CA ratio and 0.5 crosslinking agent/PEI ratio, were applied to adsorbing Cu2+ and bovine serum albumin (BSA) individually. The maximum adsorption capacity of Cu2+ ion on the blend membrane is 7.42 mg/g dry membrane. The maximum adsorption capacities of BSA on the membranes with and without chelating Cu2+ ion are 86.6 and 43.8 mg/g dry membrane, respectively. (C) 2004 Elsevier B.V. All rights reserved.
语种英语 ; 英语
原文出处查看原文 ; 查看原文
WOS记录号WOS:000221310800007 ; WOS:000221310800007
引用统计
被引频次:107[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/80975
专题中国科学院大连化学物理研究所
作者单位1.Natl Engn Res Ctr Membrane Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Dalian Univ Technol, Sch Chem Engn, Dalian 116012, Peoples R China
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GB/T 7714
Chen, ZA,Deng, MC,Yong, C,et al. Preparation and performance of cellulose acetate/polyethyleneimine blend microfiltration membranes and their applications, Preparation and performance of cellulose acetate/polyethyleneimine blend microfiltration membranes and their applications[J]. JOURNAL OF MEMBRANE SCIENCE, JOURNAL OF MEMBRANE SCIENCE,2004, 2004,235, 235(1-2):73-86, 73-86.
APA Chen, ZA,Deng, MC,Yong, C,He, GH,Ming, W,&Wang, JD.(2004).Preparation and performance of cellulose acetate/polyethyleneimine blend microfiltration membranes and their applications.JOURNAL OF MEMBRANE SCIENCE,235(1-2),73-86.
MLA Chen, ZA,et al."Preparation and performance of cellulose acetate/polyethyleneimine blend microfiltration membranes and their applications".JOURNAL OF MEMBRANE SCIENCE 235.1-2(2004):73-86.
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