Synthesis, Phase-transition Behaviors, and Birefringence Properties of Fluorinated Diphenyl–Diacetylene Derivatives
作者:Yuki Arakawa、Sungmin Kang、Junji Watanabe、Gen-ichi Konishi
DOI:10.1246/cl.140779
日期:2014.12.5
We designed fluorinated diphenyl–diacetylene-based liquid crystal (LC) molecules that exhibit enantiotropic nematic phases near room temperature. These LC molecules also show high birefringence (Δn ≈ 0.35) similar to their non-fluorinated analogs. The introduction of fluorine atoms into LC molecules can decrease the phase-transition temperature without decreasing birefringence.
我们设计了基于氟化二苯基-二炔的液晶(LC)分子,这些液晶分子在接近室温时表现出外消旋型向列相。这些液晶分子还显示出与其非氟化类似物相似的高双折射率(Δn ≈ 0.35)。向液晶分子中引入氟原子可以降低相变温度,而不降低双折射率。