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题名: Gas permeation properties of 6FDA-2,4-DAT/mPDA copolyimides
作者: Wang, Lina1;  Cao, Yiming1
关键词: 6FDA ;  copolyimide ;  gas permeation ;  global warming
刊名: INTERNATIONAL JOURNAL OF GLOBAL WARMING
发表日期: 2010
卷: 2, 期:1, 页:57-64
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: A series of novel fluorinated copolyimides were synthesised with various diamine compositions by chemical imidisation in a two-pot procedure. The gas permeation behaviour of 2,2'-bis(3,4'-dicarboxyphenyl) hexafluoropropane dianhydride(6FDA)-2,4-diamine toluene(DAT)/1,3-phenylenediamine(mPDA) polyimides was investigated. The gas permeatility coefficients decreased with increasing mPDA content; however, the permselectivity of gas pairs such as H(2)/N(2), O(2)/N(2) and CO(2)/CH(4) was enhanced with the incorporation of mPDA moiety. The permeability coefficients of H(2), O(2), N(2), CO(2) and CH(4) were found to decrease with the increasing order of kinetic diameters of the penetrant 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.
关键词[WOS]: TRANSPORT PROPERTIES ;  POLYMERIC MEMBRANES ;  AROMATIC POLYIMIDES ;  SEPARATION
语种: 英语
WOS记录号: WOS:000289943000004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141882
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Wang, Lina,Cao, Yiming. Gas permeation properties of 6FDA-2,4-DAT/mPDA copolyimides[J]. INTERNATIONAL JOURNAL OF GLOBAL WARMING,2010,2(1):57-64.
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