Optical Measurements on the BP III to Isotropic Phase Transition in Highly Chiral Liquid Crystals

摘要: Abstract Optical activity and light scattering measurements in the chiral-racemic system of 4-(2-methylbutyl) phenyl-4-hexyloxybenzoate (CE4) reveal a much larger decrease discontinuity at third blue phase (BP III) to isotropic transition than reported previously using adiabatic scanning calorimetry on another compound. Whereas these new data show that is still slightly discontinuous for pure optical isomer CE4, similar 4″-(2- methylbutylphenyl)-4′-(2-methylbutyl)-4-biphenyl-carboxylate (CE2), which more chiral no all.