Showing papers by "Friedrich Kremer published in 2002"
TL;DR: In this paper, an external electric field during the formation of the gel enables it to imprint a preferred orientation of the liquid crystals in the mixture, which results in a memory effect similar to that observed in liquid crystalline elastomers.
Abstract: Time-resolved FTIR spectroscopy with polarized light is employed to study structure and mobility of chiral liquid crystals in mixtures with thermoreversible gels of different concentration (≤ 2 mass %). The formation of the gel stabilized structure and orientation of the liquid crystals while maintaining-for gel former concentration ≤ 1 mass %-its mobility comparable to the pure compound. Applying an external electric field during the formation of the gel enables us to imprint a preferred orientation of the liquid crystals in the mixture. This results in a memory effect similar to that observed in liquid crystalline elastomers.
16 citations