Novel ferroelectricliquidcrystals with a trifluoromethylated pyranose were synthesized and their mesomorphic properties were investigated. These compounds exhibited a chiral smectic C phase and showed very largespontaneouspolarization over 700 nC·cm−2. Relationships between molecular structures and physical properties were discussed.
合成了具有三氟甲基化吡喃糖的新型铁电液晶,并研究了它们的介晶性质。这些化合物表现出手性近晶 C 相,并在超过 700 nC·cm-2 时表现出非常大的自发极化。讨论了分子结构和物理性质之间的关系。
Synthesis and Properties of Pyranose Derivatives with Trifluoromethyl Group Used as Chiral Dopants for Ferroelectric Liquid Crystals
A variety of pyranose derivatives with a trifluoromethyl group were synthesized and found to be excellent chiral dopants for ferroelectric liquid crystals. Relationships between molecular structures and induced ferroelectric properties were discussed.