Then an anisotropic film was prepared by this method, we used this anisotropic cinnamoyl-modified PVA film as alignment layer of nematic liquid crystals and got a uniform and stable alignment result.

• 将该薄膜作为向列相液晶的取向膜制成平行液晶器件，在偏光显微镜下观察，发现获得了均一、稳定的取向效果。