ICCAS OpenIR
Synthesis and properties of novel polyimides from sulfonated binaphthalene dianhydride for proton exchange membranes
Li, Nanwen1,2; Cui, Zhiming2,3; Zhang, Suobo1; Li, Shenghai1
2008-04-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume46Issue:8Pages:2820-2832
AbstractA sulfonated dianhydride monomer, 6,6-disulfonic-4,4'-binaphthyl-1,1',8,8'-tetracarboxylic dianhydride (SBTDA), was successfully synthesized by direct sulfonation of the parent dianhydride, 4,4'-binaphthyl-1,1',8,8'-tetracarboxylic dianhydride (BTDA), using fuming sulfuric acid as the sulfonating reagent. A series of sulfonated homopolyimides were prepared from SBTDA and various common nonsulfonated diamines. The resulting polymer electrolytes, which contain ion conductivity sites on the deactivated positions of the aryl backbone rings, displayed high proton conductivities of 0.25-0.31 S cm(-1) at 80 degrees C. The oxidative stability test indicated that the attachment of the -SO3H groups onto the dianhydride units did not deteriorate the oxidative stability of the SPI membranes. The better membranes were achieved by the copolymerization of nonsulfonated diamine, SBTDA, and BTDA. Copolymer membrane synthesized from hexane-1,6-diamine, SBTDA, and BTDA displayed excellent water stability of more than 1000 h at 90 degrees C, while its proton conductivity was still at a high level (comparable to that of Nafion 117). Furthermore, the novel block copolymer (II-b) displayed higher proton conductivity compared with the random one (II-r) obviously, probably due to the slightly higher water uptake and better microphase separated morphology. (c) 2008 Wiley Periodicals, Inc.
KeywordSulfonated Dianhydride Sulforrated Polyinrides Proton Exchange Membranes Proton Conductivity
DOI10.1002/pola.22616
Indexed BySCI
Language英语
WOS IDWOS:000254978600022
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:54[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65730
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
Li, Nanwen,Cui, Zhiming,Zhang, Suobo,et al. Synthesis and properties of novel polyimides from sulfonated binaphthalene dianhydride for proton exchange membranes[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2008,46(8):2820-2832.
APA Li, Nanwen,Cui, Zhiming,Zhang, Suobo,&Li, Shenghai.(2008).Synthesis and properties of novel polyimides from sulfonated binaphthalene dianhydride for proton exchange membranes.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,46(8),2820-2832.
MLA Li, Nanwen,et al."Synthesis and properties of novel polyimides from sulfonated binaphthalene dianhydride for proton exchange membranes".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 46.8(2008):2820-2832.
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