两端带有碳碳双键,尺寸与液晶分子相近的刚性小分子单体在线偏振紫外光照射下聚合,形成的聚合物膜能够诱导液晶分子均匀取向.对不同光照时间的紫外吸收光谱谱图比较发现,该取向材料具有较好的光敏性.利用偏振红外光谱测定了取向膜表面的二向色性,并且测得膜表面有序度为0.088.以晶体旋转法测定该取向膜制成的液晶器件,测得预倾角的大小为0.8°.
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