@article{aa07f5e0775e42a4a7b710e03c01536c,
title = "Thiophene-based chiral small bandgap π-conjugated polymers: Synthesis and optical properties",
abstract = "A series of thiophene-based chiral small bandgap π-conjugated polymers was successfully synthesized. Optical properties of the polymers were investigated by using UV-vis, photoluminescence (PL), circular dichroism (CD) spectroscopies, and specific rotation measurements. Especially, the isothianaphthene-thiophene based copolymers display 10-20 nm longer absorption maximum than those of thiophene-thiophene copolymers in the UV-vis. PL measurements demonstrate that the polymer exhibit light emission. CD spectroscopy measurements reveal helical π-stacking structure of the polymers.",
keywords = "chiral, isothianaphthene, polycondensation, π-stacking",
author = "Aohan Wang and Kohsuke Kawabata and Hiromasa Goto",
note = "Funding Information: Prof. H. Goto (Asst. Prof., at that time, in 1998) is thankful to Prof. K. Kaeriyama (Kyoto Institute of Technology) on the fruitful discussion about the aromatic type conjugated polymers on the occasion of the 47th The Society of Polymer Science, Japan (SPSJ) Symposium on Macromolecules (1998). He kindly gifted a reprint of ref. 7 to Goto, later. The analysis of the PL and the NMR was carried out with a F-4500 (Hitachi) and a JNM-ECS 400 (JEOL), respectively, at University of Tsukuba and the OPEN FACILITY, Research Facility Center for Science and Technology, University of Tsukuba. We thank Engineering Workshop of University of Tsukuba for glasswork. This work was supported by Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (grant #25410218, H. Goto). The early stage of this work was supported by Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (grant #10750642 in 1998−1999, H. Goto). Publisher Copyright: {\textcopyright} 2015 Taylor and Francis.",
year = "2015",
month = may,
day = "19",
doi = "10.1080/15685551.2015.1012625",
language = "English",
volume = "18",
pages = "360--366",
journal = "New Polymeric Materials",
issn = "1385-772X",
publisher = "Taylor and Francis Ltd.",
number = "4",
}