PA11 Effect of substituent on the electric field induced phase transition of cholesteric liquid crystals

Abstract

Liquid crystal compound (8BP(Cl)MB) which exhibits electric field induced phase transition in the cholesteric phase was synthesized. In this study, novel compounds (8BP(Cl)MB', 8BP(Cl_2)MB, 8FBPMB, 8FBP(Cl)MB) have been synthesized. Those componds possess substituents in different position on the mesogenic unit or the biphenyl unit. Phase transition temperatures and the textures under polarization microscope were measured. The relationship between the moleculer structure and the electric field induced phase transitions are discussed.