【Mol. Cryst. Liq. Cryst., 2007, 469, 51-58.】Synthesis and mesomorphic properties of chiral liquid crystals with semi-perfluorocarbon chains
作者：Yonggang Yang, Haitao Li, Jianxun Wen
關(guān)鍵字：chiral liquid crystals
論文來(lái)源：期刊
具體來(lái)源：Mol. Cryst. Liq. Cryst.,
發(fā)表時(shí)間：2007年
Yonggang Yang, Haitao Li, Jianxun Wen
Mol. Cryst. Liq. Cryst., 2007, 469, 51-58.
Three series of chiral compounds with semifluorinated chains have been synthesized. These compounds were characterized by IR, 1H NMR, 19F NMR, MS-mass spectrum, and elemental analysis. Their phase-transition behavior was investigated by DSC-differential scanning calorimetry and polarizing optical microscopy. Both the introduction of a triple bond and lateral difluorosubstitution in the core decrease the clearing points and suppress the formation of the SmC phase.