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Novel copolyimide membranes for gas separation
Wang, Lina; Cao, Yiming; Zhou, Meiqing; Zhou, Shaojun James; Yuan, Quan; Cao YM(曹义鸣); Cao YM(曹义鸣)
关键词6fda Copolyimide Permeability Gas Separation
刊名JOURNAL OF MEMBRANE SCIENCE
2007-11-15
ISSN0376-7388
DOI10.1016/j.memsci.2007.08.024
305期:1-2页:338-346
收录类别SCI
文章类型Article
部门归属9
项目归属905
产权排名1;1
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Engineering, Chemical ; Polymer Science
研究领域[WOS]Engineering ; Polymer Science
关键词[WOS]STRUCTURE PERMEABILITY RELATIONSHIPS ; ASYMMETRIC HOLLOW-FIBER ; TRANSPORT PROPERTIES ; AROMATIC POLYIMIDES ; PERMEATION PROPERTIES ; CHEMICAL-STRUCTURE ; PERMSELECTIVITY ; SERIES ; LAYER
英文摘要A series novel fluorinated copolyimides were synthesized with various diamine compositions by chemical imidization in a two-pot procedure. The gas permeation behavior of 2,2'-bis(3,4'-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA)-2,4,6-trimethyl-1,3-phenylenediamine (TMPDA)/2,6-diamino toluene (DAT) polyimides was investigated. The physical properties of the copolyimides were characterized by IR, DSC and TGA. All the copolyimides were soluble in most of the common solvents. The gas permeabilities and diffusion coefficients decreased with increasing DAT content; however, the permselectivity of gas pairs such as H-2/N-2, O-2/N-2, CO2/CH4 and CO2/N-2 was enhanced with the incorporation of DAT moiety. The permeability coefficients of H-2, O-2, N-2, CO2 and CH4 were found to decrease with the increasing order of kinetic diameters of the penetrants gases. Moreover, all of the copolyimides studied in this work exhibited performance near, lying on or above the existing upper bound trade-off line between permselectivity and permeability. (c) 2007 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000250890600037
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被引频次:53[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/321008/98963
专题中国科学院大连化学物理研究所
通讯作者Cao YM(曹义鸣); Cao YM(曹义鸣)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, China Grad Univ, Beijing 100049, Peoples R China
3.Honeywell Int, Des Plaines, IL 60017 USA
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Wang, Lina,Cao, Yiming,Zhou, Meiqing,et al. Novel copolyimide membranes for gas separation[J]. JOURNAL OF MEMBRANE SCIENCE,2007,305(1-2):338-346.
APA Wang, Lina.,Cao, Yiming.,Zhou, Meiqing.,Zhou, Shaojun James.,Yuan, Quan.,...&曹义鸣.(2007).Novel copolyimide membranes for gas separation.JOURNAL OF MEMBRANE SCIENCE,305(1-2),338-346.
MLA Wang, Lina,et al."Novel copolyimide membranes for gas separation".JOURNAL OF MEMBRANE SCIENCE 305.1-2(2007):338-346.
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