It was denoted (44) that the presence of orange color is a reliable indicator of the cholesteric phase
As no optical activity was observed in the monomers, the detection of a cholesteric phase and an optical rotation for each polymer suggests that for polyesters with this degree of polymerization, containing chiral centers in the main chain and hydroxyl groups of different reactivity, a nonrandom head-to-tail arrangement occurs.
As the material is chiral and exhibits a cholesteric phase at higher temperatures, the phase is classified as [S.
At last, the cell is sealed and kept at 75[degrees]C, and this temperature corresponds to a stable cholesteric phase
for which the materials are viscous.
Christian Bohley Department of Experimental Physics Otto-von-Guericke-University of Magdeburg Magdeburg, Germany Cholesteric phase
of 55% CB15 in E48 (substance used in manufacture of Liquid Crystal Displays) (100x) Polarized light 19th Place Ian C.
However, atropisomerism has already been used in the area of low-molar-mass liquid crystals (LCs) (9, 10) in order to obtain cholesteric phases
Charlet at Laval University, Quebec, and work on a range of aliphatic esters of HPC that form thermotropic cholesteric phases
They examine phase diagrams of lyotropic mixtures, phase transitions between periodically organized lytropic phases, isotropic micellar and bicontinuous phases, nematic and cholesteric phases
, and the lyotropic phases in one to three dimensions.