| 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 Author | Li, Wenze(liwenze@syuct.edu.cn) |
| 2020-02-01 | |
| Source Publication | DYES AND PIGMENTS
 |
| ISSN | 0143-7208 |
| Volume | 173Pages:12 |
| Abstract | 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. |
| Keyword | Polyazomethine Carbazole Triphenylamine Trifluoromethyl Doping Electrochromism |
| Funding Organization | China Postdoctoral Science Foundation ; Liaoning Province Natural Fund |
| DOI | 10.1016/j.dyepig.2019.107921 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | China Postdoctoral Science Foundation[2018M630309] ; Liaoning Province Natural Fund[20170540717] |
| WOS Research Area | Chemistry ; Engineering ; Materials Science |
| WOS Subject | Chemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles |
| WOS ID | WOS:000503312700037 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136494 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Wenze |
| Affiliation | 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 |
| 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment