ICCAS OpenIR
Synthesis of soluble polyimides containing bipyridinium dihydrogen phosphate and p-toluenesulfonate and effect of anions on properties of polyimides
Sun, XH; Yang, YK; Lu, FC
1999
Source PublicationPOLYMER
ISSN0032-3861
Volume40Issue:2Pages:429-437
AbstractThe objective of this research was to investigate the effect of anions on the properties of soluble polyimides containing bipyridinium salt. Thus the work began with the synthesis of two new diamines: 1,1'-di[4-(4-aminophenoxy) phenyl]-4,4'-(1,4-phenylene)bis(2,6-diphenyl pyridinium dihydrogen phosphate) and 1,1'-di[4- (4-aminophenoxy)phenyl] -4,4'-(1,4-phenylene)bis(2,6-diphenyl pyridinium p-toluene-sulfonate). The two new diamines were polymerized with several dianhydrides to afford two new series of soluble polyimides. The polyimides have inherent viscosities that range from 0.284 to 0.449 dl g(-1) in N,N-dimethylformamide at 25 degrees C. These new polymers are soluble in polar aprotic solvents. Polymers containing H2PO4- show no glass transition temperature (T-g) and the T(g)s of polymers containing p-toluenesulfonate (PTS-) are around 240 degrees C. Thermogravimetric analysis showed that the polymers began to decompose in the range from 390 to 419 degrees C. Studies showed that the solubility, T(g)s, thermal stabilities, absorption in the visible region and photosensitivities of the polymers were affected by the basicity, structure, thermal stabilities and soft/hard character of the anions, respectively. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
KeywordSoluble Polyimides Bipyridinium Counter Anions
Indexed BySCI
Language英语
WOS IDWOS:000076668500016
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74988
Collection中国科学院化学研究所
Corresponding AuthorYang, YK
AffiliationChinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Sun, XH,Yang, YK,Lu, FC. Synthesis of soluble polyimides containing bipyridinium dihydrogen phosphate and p-toluenesulfonate and effect of anions on properties of polyimides[J]. POLYMER,1999,40(2):429-437.
APA Sun, XH,Yang, YK,&Lu, FC.(1999).Synthesis of soluble polyimides containing bipyridinium dihydrogen phosphate and p-toluenesulfonate and effect of anions on properties of polyimides.POLYMER,40(2),429-437.
MLA Sun, XH,et al."Synthesis of soluble polyimides containing bipyridinium dihydrogen phosphate and p-toluenesulfonate and effect of anions on properties of polyimides".POLYMER 40.2(1999):429-437.
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