https://scholars.lib.ntu.edu.tw/handle/123456789/577182
標題: | Synthesis and characteristics of novel TPA-containing electrochromic poly(ether sulfone)s with dimethylamino substituents | 作者: | Huang C.-L Kung Y.-R Shao Y.-J Liou G.-S. GUEY-SHENG LIOU |
關鍵字: | Amorphous films; Ethers; Glass transition; Silicon; Xylene; Electro actives; Electrochemical stabilities; Nernst equation; Number of electrons; Polyether sulfone; Protecting group; Tert-butyldimethylsilyl; Triphenylamines; Electrochromism | 公開日期: | 2021 | 卷: | 368 | 來源出版物: | Electrochimica Acta | 摘要: | Newly designed dimethylamine-substituted triphenylamine (TPA) derivatives, N,N'-(1,4-phenylene)bis(N-(4-((tert-butyldimethylsilyl)oxy)phenyl)-N'',N''-dimethylbenzene-1,4-diamine) (NTPPA-2Si) and N,N'-((1,1′-biphenyl)-4,4′-diyl)bis(N-(4-((tert-butyldimethylsilyl)oxy)phenyl)-N'',N''-dimethylbenzene-1,4-diamine) (NTPB-2Si), with silyl ether protecting groups were readily synthesized. Subsequently, novel electroactive aromatic poly(ether sulfone)s (PES), NTPPA-PES and NTPB-PES, could be obtained from silyl polycondensation. The PESs were readily soluble in commonly used laboratory organic solvents and could be solution-cast into tough and amorphous films with moderate levels of glass-transition temperature around 220°C and thermal stability without significant weight loss up to 400 °C under nitrogen or air atmosphere. The Nernst equation method was used to explore the number of electrons transferred at each oxidation step of the targeted two monomers. Furthermore, these two anodic electrochromic PESs were introduced into electrochromic devices accompanied with cathodic heptyl viologen (HV), and the resulted devices demonstrated a high coloration contrast and excellent electrochemical stability. ? 2020 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097774503&doi=10.1016%2fj.electacta.2020.137552&partnerID=40&md5=e3e79608ca921021335986c7e7c494c3 https://scholars.lib.ntu.edu.tw/handle/123456789/577182 |
ISSN: | 134686 | DOI: | 10.1016/j.electacta.2020.137552 |
顯示於: | 高分子科學與工程學研究所 |
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