Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 20, Issue 8, Pages 1243-1250Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.200902059
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [202250007, 446]
- Grants-in-Aid for Scientific Research [20225007] Funding Source: KAKEN
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Novel multifunctional conjugated polymers, [poly( p-phenylene)s and poly(bithienylene-phenylene)s with (R)- and (S)-configurations], which have fluorescence, chirality, and photoresponsive properties, have been designed and synthesized. The polymers are composed of pi-conjugated main chains, where poly(p-phenylene) and poly(bithienylene-phenylene) are fluorescence moieties, and the side chains of the photochromic dithienylethene moiety are linked with chiral alkyl groups. The polymer films exhibit right- or left-handed circularly polarized fluorescence (CPF) and also show reversible quenching and emitting behaviors as a result of photochemical isomerization of the dithienylethene moiety upon irradiation with ultraviolet and visible light. This is the first report realizing the reversible switching of CPF using chirality and photoresponsive properties.
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