Pseudo-rodlike molecules with hockey-stick-shaped mesogen |
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| Authors: | E-Joon Choi Kyung-Min Park Dae-Yoon Kim Ji-Hoon Lee |
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| Institution: | 1. Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Koreaejchoi@kumoh.ac.kr;3. Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Korea;4. Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Korea;5. Advanced Electronics and Information Research Center, Division of Electronics Engineering, Chonbuk National University, Jeonju, Korea |
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| Abstract: | Hockey-stick-shaped molecules were newly synthesised to obtain pseudo-rodlike molecules. The designed molecules consist of a polar terminal ring (i.e. 2,3,4-, 2,4,6- or 3,4,5-trifluorophenyl group), a rigid middle block (i.e. four rings with aligned ester linkages) and a flexible terminal chain (i.e. dodecyloxy group). We found that the compounds with 2,3,4- and 3,4,5-trifluorophenyl groups formed a smectic A mesophase with head-to-head bi-layer building blocks, whereas the compound with 2,4,6-trifluorophenyl group formed a nematic mesophase. This might be concerned with the behaviour of pseudo-rodlike molecules |
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| Keywords: | Bent-core liquid crystal hockey-stick-shaped mesogen synthesis |
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