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Materials 2012, 5(2), 317-326; doi:10.3390/ma5020317
Article

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

1
, 1
, 2
, 1
, 1
 and 1,*
1 Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan 2 European Patent Office, Patentlaan 3-9, 2288 EE The Hague, The Netherlands
* Author to whom correspondence should be addressed.
Received: 29 December 2011 / Revised: 21 January 2012 / Accepted: 6 February 2012 / Published: 16 February 2012
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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.
Keywords: π-conjugated polymer; low-bandgap polymer; isothianaphthene; chiroptical activity π-conjugated polymer; low-bandgap polymer; isothianaphthene; chiroptical activity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Innami, Y.; Kawashima, H.; Kiebooms, R.H.L.; Aizawa, H.; Matsuishi, K.; Goto, H. Synthesis and Properties of Poly(Isothianaphthene Methine)s with Chiral Alkyl Chain. Materials 2012, 5, 317-326.

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