This work addresses the objective of understanding molecular events involved in cholesteric liquid crystal (LC) phase changes over a temperature range. The temperature-responsive behavior of formulations containing cholesteryl oleyl carbonate, cholesteryl pelargonate and cholesteryl benzoate were characterized using quartz crystal microbalance with dissipation monitoring (QCM-D). As temperature was varied, changes in molecular orientation within LC films were observed in relation to the transition temperatures of the formulations. The molecular behavior of liquid crystal domains encapsulated within polymer-LC emulsions was also explored. This knowledge will inform the development of smart materials for use in textiles and provide a novel characterization technique for materials that undergo phase changes.

Monitoring the temperature-responsive behavior of cholesteric liquid crystal films and emulsions using QCM-D

2019 Fall National Meeting

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