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Electrosynthesis of redox-active and electrochromic polymer films from triphenylamine-cored star-shaped molecules end-capped with arylamine groups
- Source :
- European Polymer Journal. 99:422-436
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Four starburst molecules with a triphenylamine (TPA) core through the amide group linked to the terminal triphenylamine or (N-phenyl)carbazole (NPC) unit, coded as T-3(NHCO-TPA), T-3(NHCO-NPC), T-3(CONH-TPA), and T-3(CONH-NPC), were synthesized and their electrochemistry and electropolymerization were investigated. The oxidation potential and the stability of the oxidized forms of the starbursts are affected by the orientation of amide linkage and the structure of terminal triarylamine unit. Robust polymeric films could be built onto ITO/glass surface by repetitive cyclic voltammetry (CV) of the T-3(NHCO-TPA) solution containing an electrolyte. The electrodeposited films exhibited reversible electrochemical processes and strong color changes upon electro-oxidation, which can be switched by potential modulation. The electrochromic behavior of the film was clearly interpreted on the basis of spectroelectrochemical studies. T-3(CONH-TPA) did not undergo electropolymerization effectively. T-3(CONH-NPC) also could electrochemically polymerize to polymer films upon repeated CV scans. However, their electrochromic switching stability is less than that of the polymer film from T-3(NHCO-TPA).
- Subjects :
- chemistry.chemical_classification
Materials science
Polymers and Plastics
Carbazole
Organic Chemistry
General Physics and Astronomy
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
Electrosynthesis
Electrochemistry
Triphenylamine
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
chemistry
Polymerization
Electrochromism
Polymer chemistry
Materials Chemistry
Cyclic voltammetry
0210 nano-technology
Subjects
Details
- ISSN :
- 00143057
- Volume :
- 99
- Database :
- OpenAIRE
- Journal :
- European Polymer Journal
- Accession number :
- edsair.doi...........2581ef7179eec1bc94571f1fcffe7b52