Synthesis and electrochemical properties of a new benzimidazole derivative as the acceptor unit in donor-acceptor-donor type polymers

被引：33
作者：
Ozelcaglayan, Ali Can [1 ]
Sendur, Merve [1 ]
Akbasoglu, Naime [1 ]
Apaydin, Dogukan Hazar [2 ]
Cirpan, Ali [1 ,2 ,4 ]
Toppare, Levent [1 ,2 ,3 ,4 ]
机构：
[1] Middle E Tech Univ, Dept Chem, TR-06800 Ankara, Turkey
[2] Middle E Tech Univ, Dept Polymer Sci & Technol, TR-06800 Ankara, Turkey
[3] Middle E Tech Univ, Dept Biotechnol, TR-06800 Ankara, Turkey
[4] Middle E Tech Univ, Ctr Solar Energy Res & Applicat GUNAM, TR-06800 Ankara, Turkey
来源：
ELECTROCHIMICA ACTA | 2012年 / 67卷
关键词：
Benzimidazole; Electrochromism; Multichromic; Conjugated polymers; Donor effect; CONJUGATED POLYMERS; ELECTROCHROMIC POLYMERS; NEUTRAL STATE; BAND-GAP; GREEN; ELECTRON;
D O I：
10.1016/j.electacta.2012.02.047
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new benzimidazole unit, 4'-(tert-butyl)spiro[benzo[d]imidazole-2,1'-cyclohexane] was synthesized and coupled with different donor units like 3-hexylthiophene and 3,4-ethylenedioxythiophene (EDOT) via Stille coupling. The donor-acceptor-donor (D-A-D) type monomers, 4'-(tert-butyl)-4,7-bis(4-hexylthiophen-2-yl)spiro[benzo[d]imidazole-2,1'-cyclohexane] (BIHT) and 4'-(tert-butyl)-4,7-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)spiro[benzo[d]imidazole-2,1'-cyclohexane] (BIED) were electrochemically polymerized, their electrochemical and optical properties were investigated by cyclic voltammetry, UV-vis-NIR spectroscopy techniques. Effect of donor groups on the optical and electronic properties of polymer was studied. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：224 / 229
页数：6
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