Helical twisting properties of new chiral dopants with double (S)-1, 2-propanediol units for nematic liquid crystals |
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| Authors: | Hai Quan Zhang Wen Ke Liu Li Cheng Zhao Wei Huang Shuai Zhang Ying Li Huai Yang |
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| Institution: | a State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;b Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | A novel series of chiral dopants synthesized from (S)-1, 2-propanediol and mesogenic carboxylic acids were characterized by FT-IR, 1H NMR, elemental analysis and their helical twisting properties were investigated by doping the chiral dopants into a nematic liquid crystal host (SLC-1717). The results show that, the helical pitch of N*-LC mixture exhibited a terminal alkyl chain length dependence and the molecular twisting power β also exhibited a temperature dependence (increasing β with increasing temperature). |
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| Keywords: | Chiral dopants Chiral nematic Pitch Molecular twisting power |
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