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Ionic and non-ionic liquid crystalline polymethacrylates were synthesized, and their thermal and liquid crystalline properties were compared. Both the ionic and non-ionic liquid crystalline polymethacrylates exhibited a thermotropic smectic A phase. An isotropization temperature of the ionic liquid crystalline polymethacrylate was higher than for the non-ionic liquid crystalline polymethacrylate. Moreover, the ionic liquid crystalline polymethacrylate showed a higher glass transition temperature when compared to the non-ionic liquid crystalline polymethacrylate. The ionic and non-ionic liquid crystalline polymethacrylates formed a partial bilayer structure in the smectic A phase.
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Ujiie et al. (2000) studied this question.
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