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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)
Keyword6fda Copolyimide Permeability Gas Separation
Source PublicationJOURNAL OF MEMBRANE SCIENCE
2007-11-15
ISSN0376-7388
DOI10.1016/j.memsci.2007.08.024
Volume305Issue:1-2Pages:338-346
Indexed BySCI
SubtypeArticle
Department9
Funding Project905
Contribution Rank1;1
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS SubjectEngineering, Chemical ; Polymer Science
WOS Research AreaEngineering ; Polymer Science
WOS KeywordSTRUCTURE PERMEABILITY RELATIONSHIPS ; ASYMMETRIC HOLLOW-FIBER ; TRANSPORT PROPERTIES ; AROMATIC POLYIMIDES ; PERMEATION PROPERTIES ; CHEMICAL-STRUCTURE ; PERMSELECTIVITY ; SERIES ; LAYER
AbstractA 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.
Language英语
URL查看原文
WOS IDWOS:000250890600037
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/98963
Collection中国科学院大连化学物理研究所
Corresponding AuthorCao YM(曹义鸣); Cao YM(曹义鸣)
Affiliation1.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
Recommended Citation
GB/T 7714
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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