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Novel triphenylamine polyazomethines bearing carbazole and trifluoromethyl substituents: Preparation and electrochromic behavior
Liu, Yu1,2; Pang, Lifei1; Liu, Tingjun1; Guo, Jinyu1; Wang, Jiuyang1; Li, Wenze1
Corresponding AuthorLi, Wenze(liwenze@syuct.edu.cn)
2020-02-01
Source PublicationDYES AND PIGMENTS
ISSN0143-7208
Volume173Pages:12
AbstractA series of novel polyazomethines (PAMs) were successfully synthesised as reported herein. In particular, a new electroactive diamine 3 ''-trifluoromethyl-4,4'-diamino-4"-N-carbazolyl triphenylamine (N) underwent direct polycondensation reactions with various dialdehydes, such as terephthalaldehyde (Va), 1, 3-isophthalaldehyde (Vb), o-phthalaldehyde (Vc) and 4, 4'-diformyltriphenylamine (Vd) to yield a sequence of novel PAMs: VIa-VId. These polymers were tested via differential scanning calorimetry (DSC) to have very high glass transition temperatures (T(g)s, 237-271 degrees C). Meanwhile, thermogravimetric analysis (TGA) indicated that all of the PAMs in these series were stable with a 5% weight loss in nitrogen atmosphere (444-483 degrees C). These PAMs films were tested via cyclic voltammetry (CV) and calculated to have HOMO levels between -5.09 and -5.29 eV, LUMO levels between -2.47 and -3.18 eV (relative to vacuum levels). The color of the PAMs films can be changed from yellow in the initial neutral state to red via electrooxidation during the period of 0.0-1.3 V, and then becomes purple as the voltage rises to 1.5 V. A variety of pH- and chemical doping-responsive color changes were also observed. Taking into account the sensitive properties of PAMs, this PAMs will have broad application prospects, such as chemical sensors, OLEDs and solar cells.
KeywordPolyazomethine Carbazole Triphenylamine Trifluoromethyl Doping Electrochromism
Funding OrganizationChina Postdoctoral Science Foundation ; Liaoning Province Natural Fund
DOI10.1016/j.dyepig.2019.107921
Indexed BySCI
Language英语
Funding ProjectChina Postdoctoral Science Foundation[2018M630309] ; Liaoning Province Natural Fund[20170540717]
WOS Research AreaChemistry ; Engineering ; Materials Science
WOS SubjectChemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles
WOS IDWOS:000503312700037
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136496
Collection中国科学院金属研究所
Corresponding AuthorLi, Wenze
Affiliation1.Shenyang Univ Chem Technol, Coll Appl Chem, Shenyang 110142, Liaoning, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yu,Pang, Lifei,Liu, Tingjun,et al. Novel triphenylamine polyazomethines bearing carbazole and trifluoromethyl substituents: Preparation and electrochromic behavior[J]. DYES AND PIGMENTS,2020,173:12.
APA Liu, Yu,Pang, Lifei,Liu, Tingjun,Guo, Jinyu,Wang, Jiuyang,&Li, Wenze.(2020).Novel triphenylamine polyazomethines bearing carbazole and trifluoromethyl substituents: Preparation and electrochromic behavior.DYES AND PIGMENTS,173,12.
MLA Liu, Yu,et al."Novel triphenylamine polyazomethines bearing carbazole and trifluoromethyl substituents: Preparation and electrochromic behavior".DYES AND PIGMENTS 173(2020):12.
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