Issue 17, 2012
From the journal:

Journal of Materials Chemistry

Stabilization of the blue phases of simple rodlike monoester compounds by addition of their achiral homologues†

Keiki Kishikawa,*a   Hiroyuki Itoh,a   Seiji Akiyama,a   Takahiro Kobayashia  and  Shigeo Kohmotoa  

* Corresponding authors

a Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
E-mail: kishikawa@faculty.chiba-u.jp
Fax: +81-43-290-3422
Tel: +81-43-290-3238

Abstract

As novel rodlike liquid crystalline ester compounds exhibiting blue phases (BPs), chiral 4-(4′-alkoxyphenyl)phenyl 4-(4′-alkoxyphenyl)benzoate derivatives (R–C6H4–C6H4–OCO–C6H4–C6H4–R′), 1 (R = R′ = (R)-1-methylheptyloxy, BP range: 1.6 K on heating), 2 (R = (R)-1-methylheptyloxy, R′ = n-octyloxy, BP range: 0.8 K on heating), 4 (R = (R)-1-methylheptyloxy, R′ = H, BP range: 1.0 K on heating), were synthesized and their phase behaviors were investigated. Further, the BP of 1 was stabilized by addition of its achiral homologue ester compound 3 (R = R′ = n-octyloxy). In the range of the composite ratio of 1 : 3 from 10 : 0 to 0 : 10, the BP temperature range became wider with increase of the content of 3 in the mixture. At the ratio of 6 : 4, the BP indicated the widest temperature range in the mixing experiment (5.0 K on heating and 6.0 K on cooling).

Graphical abstract: Stabilization of the blue phases of simple rodlike monoester compounds by addition of their achiral homologues

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Article information

DOI
https://doi.org/10.1039/C2JM16359D
Article type
Paper
Submitted
05 Dec 2011
Accepted
22 Feb 2012
First published
19 Mar 2012

J. Mater. Chem., 2012,22, 8484-8491

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Stabilization of the blue phases of simple rodlike monoester compounds by addition of their achiral homologues

K. Kishikawa, H. Itoh, S. Akiyama, T. Kobayashi and S. Kohmoto, J. Mater. Chem., 2012, 22, 8484 DOI: 10.1039/C2JM16359D

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