Highly fluorinated liquid crystals with wide nematic phase interval and good solubility
2014; Taylor & Francis; Volume: 41; Issue: 12 Linguagem: Inglês
10.1080/02678292.2014.950617
ISSN1366-5855
AutoresJian Li, Minggang Hu, Juanli Li, Zhongwei An, Xiaozhe Yang, Zhi Yang, Zhaoyi Che,
Tópico(s)Nonlinear Dynamics and Pattern Formation
ResumoA series of new liquid crystal compounds with both ethylene and difluoromethyleneoxy linking groups have been synthesised and their physical properties were measured. The compounds exhibit lower melting points and broader nematic mesophase temperature range than that of corresponding four-rings compound. Their anisotropic properties are Δε of about 25 and Δn of 0.135. The investigation shows that their solubilities are much better than that of reference compound. A mixture made by equivalent mass ratio of the compounds with side chain of ethyl, propyl and pentyl is found to keep nematic phase from 12°C°C to 109°C, which is rarely observed in highly fluorinated liquid crystals.
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