120th General Meeting of the KCS

Type Poster Presentation
Area Electrochemistry
Room No. Exhibition Hall 2+3
Time 10월 20일 (금요일) 13:00~14:30
Code ELEC.P-493
Subject Synthesis, electrochemical, and spectroelectrochemical properties of poly(3-([2,2':5',2''-terthiophen]-3'-yl)-5-aminobenzoic acid)
Authors Kyeongdeok Seo, Won-Chul Lee, Yoon Bo Shim*
Department of Chemistry, Pusan National University, Korea
Abstract The functionalized conductive polymer of the terthiophene derivative, 3-([2,2':5',2''-terthiophen]-3'-yl)-5-aminobenzoic acid (TTABA) was firstly synthesized and monomer structure was confirmed with 1H NMR and mass spectroscopy. The maximum UV–visible absorption and PL emission bands of TTABA monomer were observed at 346nm and 488 nm, respectively. Poly TTABA was characterized by in-situ UV-Vis spectroscopy, AFM, FE-SEM techniques. Spectroelectrochemical experiments were performed to observe the absorption bands of the pTTABA film in the neutral and oxidized forms. The DCVA analysis of pTTABA shows the absorption bands at 470, 759 and 948 nm corresponding to the π –π * transition, polaron, and bipolaron formations, respectively. The polyTTABA film shows reversible multiple color transition within 0.6 s (from brownish-yellow (at 0.0 V) to blue (at +1.3 V)) when the potential switches between the reduced and oxidized states.
E-mail kdseo0427@pusan.ac.kr