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Novel acid-base polyimides synthesized from binaphthalene dianhydrie and triphenylamine-containing diamine as proton exchange membranes
Zhang, Feng1,2; Li, Nanwen1,2; Cui, Zhiming1,3; Zhang, Suobo1; Li, Shenghai1
2008-04-30
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume314Issue:1-2Pages:24-32
AbstractThe synthesis and characterization of novel acid-base polyimide membranes for the use in polymer electrolyte membrane fuel cell is presented in this paper. The sulfonated polyimides (SPIs) bearing basic triphenylamine groups were easily synthesized using 4,4'-binaphthyl-1,1',8,8'-tetracarboxylic dianhydride (BTDA), sulfonated diamine of 4,4'-diaminodiphenyl ether-2,2'-disulfonic acid (ODADS), and nonsulfonated diamines of 4,4'-diaminotriphenylamine (DATPA). The effects of the structure of the dianhydride and diamines on the properties of SPI membranes were evaluated through the study of membrane parameters including water sorption, proton conductivity, water stability, dimensional changes, and methanol permeability. It was found that the BTDA-based sulfonated polyimides displayed much better hydrolytic stability than 1,4,5,8-naphthalenecarboxylic dianhydride (NTDA)-based polyimides. This is because the former has a decreased positive charge density in the imido rings compared to the latter ones. Furthermore, the present SPI membranes also displayed much better resistance to swelling than these without DATPA due to the strong interchain interaction through basic triphenylamine functions and sulfonic acid groups. The SPI membrane with IEC value of 2.21 mequiv./g shows the proton conductivity of 0.11 S/cm at 20 degrees C which is higher than Nation 117 (0.09 S/cm at 20 degrees C). Moreover, the SPI membranes exhibited excellent mechanical properties and decreased methanol permeability. (C) 2008 Elsevier B.V. All rights reserved.
KeywordSulfonated Polyimides Basic Triphenylamine Swelling Capacity Proton Conductivity Proton Exchange Membrane
DOI10.1016/j.memsei.2008.01.032
Indexed BySCI
Language英语
WOS IDWOS:000255994600004
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:43[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64654
Collection中国科学院化学研究所
Corresponding AuthorZhang, Suobo
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.State Key Lab Electroanalyt chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Feng,Li, Nanwen,Cui, Zhiming,et al. Novel acid-base polyimides synthesized from binaphthalene dianhydrie and triphenylamine-containing diamine as proton exchange membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2008,314(1-2):24-32.
APA Zhang, Feng,Li, Nanwen,Cui, Zhiming,Zhang, Suobo,&Li, Shenghai.(2008).Novel acid-base polyimides synthesized from binaphthalene dianhydrie and triphenylamine-containing diamine as proton exchange membranes.JOURNAL OF MEMBRANE SCIENCE,314(1-2),24-32.
MLA Zhang, Feng,et al."Novel acid-base polyimides synthesized from binaphthalene dianhydrie and triphenylamine-containing diamine as proton exchange membranes".JOURNAL OF MEMBRANE SCIENCE 314.1-2(2008):24-32.
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