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Synthesis and Properties of Poly(Isothianaphthene Methine)s with Chiral Alkyl Chain

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Author(s): Yu Innami | Hirotsugu Kawashima | Rafaël H. L. Kiebooms | Hideaki Aizawa | Kiyoto Matsuishi | Hiromasa Goto

Journal: Materials
ISSN 1996-1944

Volume: 5;
Issue: 2;
Start page: 317;
Date: 2012;
Original page

Keywords: π-conjugated polymer | low-bandgap polymer | isothianaphthene | chiroptical activity

ABSTRACT
We synthesized poly(isothianaphthene methine)s with chiral alkyl chains in the substituent. Resultant polymers are soluble in THF and CHCl3. Structure of the polymers was characterized with FT-IR, FT-Raman, and UV-Vis-NIR optical absorption spectroscopy. They showed low-bandgap both in solution and in a form of film. Optical activity of the polymers was confirmed with optical rotatory dispersion. Doping effects on the polymer were also examined with UV-Vis-NIR spectroscopy and ESR measurement.
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