Abstract
Phase transitions of nematic and cholesteric liquid crystals (LC), either pure or inserted into a polymeric matrix. were investigated by using DSC and thermooptical analysis (TOA) techniques. The morphological structures of these LC, their stabilities in polymer film and their phase transitions were found to depend on the LC concentration and its distribution in the polymeric matrix. The polymer affects the LC ordering. leading to a decrease of the mesophase range.
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