Syntheses and Optoelectronic Properties of Quinoxaline Polymers: The Effect of Donor Unit

Date

2011-09-15

Author

Sendur, Merve
Balan, Abidin
Baran, Derya
Toppare, Levent Kamil

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Tuning the bandgap of electrochromic polymers is one of the important research topics in electrochromism. To understand clearly the effect of donor unit in donor-acceptor-donor-type polymers, 2,3-bis(4-tert-butylphenyl)-5,8-di(thiophen-2-yl)quinoxaline and 2,3-bis(4-tert-butylphenyl)-5-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-8-(thiophen-2-yl)quinoxaline were synthesized and polymerized potentiodynamically. Their electrochemical and spectroelectrochemical studies were performed, and the results were compared with those of poly(2,3-bis(4-tert-butylphenyl)-5,8-bis(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)quinoxaline) (Gunbas et al., Adv Mater 2008, 20, 691-695). A blue shift in the polymer pi-pi* transitions revealed that the bandgap of such polymers with the same acceptor unit is related to the electron density of donor units. (C) 2011 Wiley Periodicals, Inc. J PolymSci Part A: PolymChem 49: 4065-4070, 2011

Subject Keywords

Organic Chemistry, Materials Chemistry, Polymers and Plastics

URI

https://hdl.handle.net/11511/37182

Collections

Department of Chemistry, Article