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Discotic Ionic Liquid Crystals of Triphenylene as Dispersants for Orienting Single‐Walled Carbon Nanotubes
Author(s) -
Lee Jeongho Jay,
Yamaguchi Akihisa,
Alam Md. Akhtarul,
Yamamoto Yohei,
Fukushima Takanori,
Kato Kenichi,
Takata Masaki,
Fujita Norifumi,
Aida Takuzo
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201203284
Subject(s) - triphenylene , homeotropic alignment , discotic liquid crystal , materials science , carbon nanotube , ionic liquid , anisotropy , liquid crystal , dispersant , chemical engineering , ionic bonding , nanotechnology , chemical physics , ion , organic chemistry , optics , optoelectronics , chemistry , catalysis , physics , dispersion (optics) , engineering
Orient and conduct : Triphenylene‐based discotic ionic liquid crystals (ILCs) with six imidazolium ion pendants can disperse pristine single‐walled carbon nanotubes (SWNTs). When the ILC is columnarly assembled, doping with SWNTs results in macroscopic homeotropic columnar orientation. Combination of shear and annealing treatments gives rise to three different orientation states, which determine the anisotropy of electrical conduction.