Blue phase stability of n-OCB homologue chiral nematic liquid crystal mixtures |
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| Authors: | Sung-Kyu Hong Choonghwan Kim SangJin Park Hirotsugu Kikuchi |
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| Institution: | 1. Department of Chemical &2. Biochemical Engineering , Dongguk University-Seoul , Seoul , Korea hsk5457@dongguk.edu;4. Biochemical Engineering , Dongguk University-Seoul , Seoul , Korea;5. Institute for Materials Chemistry and Engineering , Kyushu University , Fukuoka , Japan |
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| Abstract: | Blue phase (BP) stability of a chiral nematic liquid crystal (LC) mixture is dependent upon chemical structure as well as physical properties. In this study, the blue phase temperature range dependent on alkyl chain length was investigated in order to evaluate the relationship between blue phase stability and the molecular structures of four kinds of 4-n-alkyloxy-4'-cyanobiphenyl (n-OCB) homologue chiral nematic LC mixtures composed of rod-like nematic LCs. It was confirmed that the blue phase temperature range was strongly dependent upon the molecular parity, K 33/K 11 and the helical twist power of the n-OCB homologues chiral nematic LC mixtures. |
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| Keywords: | blue phase temperature range n-OCB homologue molecular parity K 33/K 11 HTP |
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