| Cholesteric liquid crystals |
Cholesteryl Pripionate |
Cholesteryl Nonanoate |
Cholseteryl Benzoate |
Cholesteryl Chloride |
Cholesteryl Oleyl Carbonate |
Cholesteryl Isostearyl Carbonate |
Cholesteryl 2,4-Dichlorobenzoate |
Cholesteryl Chloroformate |
|
Cholesteric liquid crystals are organic compounds based on the natural product, cholesterol.These materials are capable of detecting small amounts of radiant energy and converting it into a visible representation by selective reflection of light.Specific colors are reflected when the wavelength is equal to the pitch length. Pitch length varies with temperature, therefore,the color of the reflected light varies with temperature.The many derivatives available for phase change at various temperatures. Mixtures of the cholesterol derivatives can give sensing capability to devices over a wide temperature range. |
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