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题名: The gas permeation properties of 6FDA-2, 4, 6-trimethyl-1, 3-phenylenediamine (TMPDA)/1, 3-phenylenediamine (mPDA) copolyimides
作者: Wang, Lina1, 2;  Cao, Yiming1;  Zhou, Meiqing1;  Ding, Xiaoli1, 2;  Liu, Qinhua1;  Yuan, Quan1
关键词: 6FDA copolyimide ;  permeability ;  gas separation
刊名: POLYMER BULLETIN
发表日期: 2008-02-01
DOI: 10.1007/s00289-007-0841-2
卷: 60, 期:1, 页:137-147
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Polymer Science
研究领域[WOS]: Polymer Science
英文摘要: The gas permeation behavior of 2, 2'-bis (3, 4'dicarboxyphenyl) hexafluoropropane dianhydride(6FDA)- 2, 4, 6-Trimethyl-1, 3-phenylenediamine (TMPDA)/1,3-phenylenediamine (mPDA) polyimides was investigated by systematically varying the diamine ratios. 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 mPDA content; however, the permselectivity of gas pairs such as H-2/N-2, O-2/N-2, CO2/CH4 was enhanced with the incorporation of mPDA 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 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]: ASYMMETRIC HOLLOW-FIBER ;  TRANSPORT PROPERTIES ;  PERMEABILITY ;  SEPARATION ;  POLYIMIDES ;  MEMBRANES ;  POLYMERS ;  PERMSELECTIVITY ;  DIAMINES ;  BLENDS
语种: 英语
WOS记录号: WOS:000252224100015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140882
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
2.Chinese Acad Sci, China Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Wang, Lina,Cao, Yiming,Zhou, Meiqing,et al. The gas permeation properties of 6FDA-2, 4, 6-trimethyl-1, 3-phenylenediamine (TMPDA)/1, 3-phenylenediamine (mPDA) copolyimides[J]. POLYMER BULLETIN,2008,60(1):137-147.
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