Light scattering electrooptical properties of liquid crystal physical gels

摘要

Light scattering electrooptical switching has been achieved for liquid crystal physical gels consisting of a room temperature nematic liquid crystal and a hydrogen-bonded gelator. The use of the nematic liquid crystal exhibiting higher isotropization temperature and the gelator with four hydrogen-bonded moieties leads to the formation of thermally more stable liquid crystal gels. The liquid crystal gels show significant electrooptical properties for light scattering display materials. We have examined the effects of the concentration of the gelator and the cell thickness on the electrooptical behavior.