Novel triphenylamine polyazomethines bearing carbazole and trifluoromethyl substituents: Preparation and electrochromic behavior

doi:10.1016/j.dyepig.2019.107921

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	Novel triphenylamine polyazomethines bearing carbazole and trifluoromethyl substituents: Preparation and electrochromic behavior
	Liu, Yu 1,2; Pang, Lifei 1; Liu, Tingjun 1; Guo, Jinyu 1; Wang, Jiuyang 1; Li, Wenze 1
通讯作者	Li, Wenze(liwenze@syuct.edu.cn)
	2020-02-01
发表期刊	DYES AND PIGMENTS
ISSN	0143-7208
卷号	173 页码:12
摘要	A 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.
关键词	Polyazomethine Carbazole Triphenylamine Trifluoromethyl Doping Electrochromism
资助者	China Postdoctoral Science Foundation ; Liaoning Province Natural Fund
DOI	10.1016/j.dyepig.2019.107921
收录类别	SCI
语种	英语
资助项目	China Postdoctoral Science Foundation[2018M630309] ; Liaoning Province Natural Fund[20170540717]
WOS研究方向	Chemistry ; Engineering ; Materials Science
WOS类目	Chemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles
WOS记录号	WOS:000503312700037
出版者	ELSEVIER SCI LTD
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136496
专题	中国科学院金属研究所
通讯作者	Li, Wenze
作者单位	1.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
推荐引用方式 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.