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The synthesis of a liquid-crystalline diepoxide 4-[(3,4-epoxybutenyl)oxy]phenyl 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.
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Broer et al. (1993) studied this question.
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