Hydrogen bond network-stabilisation of blue phases by addition of a chiral N-(10-hydroxydecyl)succinimide derivative and alkane diols

作者：Kishikawa Keiki^*; Furukawa Yuki; Watanabe Tomohiro; Kohri Michinari; Taniguchi Tatsuo; Kohmoto Shigeo

来源：Liquid Crystals, 2017, 44(8): 1332-1339.

DOI：10.1080/02678292.2017.1295477

• Blue phase
• chiral dopant
• chiral nematic liquid crystal phase
• disclination
• hydrogen bond

Blue phases (BPs) obtained by doping a commercially available liquid crystalline compound (4-butyl-N-(4-ethoxybenzylidene)aniline (EBBA)) with (2R,3R)-2,3-bis(4-octyloxyphenylbenzoyloxy)-N-(hydroxydecyl)succinimide (1) were highly stabilised by the addition of a small amount of alkane diols. Especially, addition of only 0.5mol% of octane-1,8-diol increased the BP-Iso transition temperature by 10K and widened the BP temperature range up to 35K. A model stabilisation mechanism based on the construction of a hydrogen bond network in each disclination zone in BPs was proposed.
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• 出版日期2017