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The synthesis of a liquid-crystalline diepoxide 4-(3,4-epoxybutenyl)oxyphenyl 4-(3,4-epoxybutenyl)oxy benzoate is described. The photoinitiated cross-linking of this molecule, uniaxially oriented in the nematic state, to form an ordered network is studied. This network shows an increased birefringence which is maintained at high temperatures.
Mary Budd Rowe (Sat,) studied this question.