Synthesis of diphenyl-diacetylene-based nematic liquid crystals and their high birefringence properties

…, M Uchimura, S Kang, G Konishi, J Watanabe

文献索引：Arakawa, Yuki; Nakajima, Shunpei; Ishige, Ryohei; Uchimura, Makoto; Kang, Sungmin; Konishi, Gen-Ichi; Watanabe, Junji Journal of Materials Chemistry, 2012 , vol. 22, # 17 p. 8394 - 8398

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被引用次数: 35

摘要

We synthesized two series of diphenyl-diacetylene (DPDA)-based materials with alkoxy and alkyl tails of length m (DPDA–OCm and DPDA–Cm, respectively), and measured their nematic-phase birefringence (Δn) as a function of wavelength and temperature. We found that Δn decreases with an increase in m, possibly by a dilution effect of the low-Δn alkyl tail. Further, of the two series, Δn was found to be relatively higher in the DPDA–OCm ...