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Chiral Liquid Crystals: Chiral Reaction Field with Thermally Invertible Helical Sense that Controls the Helicities of Conjugated Polymers (Adv. Mater. 12/2020)
Author(s) -
Akagi Kazuo,
Yamashita Tomohiro,
Horie Keita,
Goh Munju,
Yamamoto Masaharu
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202070092
Subject(s) - liquid crystal , materials science , helicity , conjugated system , polymer , dopant , invertible matrix , liquid crystalline , crystallography , doping , optoelectronics , composite material , physics , chemistry , quantum mechanics , particle physics
In article number 1906665, Kazuo Akagi and co‐workers report the synthesis of a novel chiral compound comprising two types of chiral moieties with opposite helicities and temperature dependences, which they then add as a chiral dopant to a mixture of nematic LCs to prepare a chiral nematic liquid crystal (N*‐LC). The N*‐LC exhibits thermally invertible helicity to yield left‐ and right‐handed helical senses at low and high temperatures, respectively, which enables the production of helicity‐controlled helical conjugated polymers.