The invention relates to Process for the preparation of a layer comprising oriented molecules on a substrate, comprising the steps of
a. providing a substrate
b. applying a film of a coating composition on the substrate
c. forming a splay or bend liquid crystalline structure within the film
d. applying a dose of electromagnetic radiation to the film to at least partly cure the film,
wherein the coating composition comprises at least one liquid crystalline material having at least one polymerizable group and a monomer having at least two polymerizable groups, and a dichroic photoinitiator. The invention relates to the preparation of three dimensional structures by using a polarization hologram on a coating composition which has a splay orientation.
本发明涉及在基底上制备由定向分子组成的层的工艺,包括以下步骤
a. 提供基底
b. 在基底上涂敷一层涂层组合物薄膜
c. 在薄膜内形成平展或弯曲的液晶结构
d. 对薄膜进行一定剂量的电磁辐射,以至少部分固化薄膜、
其中,涂层组合物包括至少一种具有至少一个可聚合基团的液晶材料和一种具有至少两个可聚合基团的单体,以及一种二色性光
引发剂。本发明涉及在具有平展取向的涂层组合物上使用偏振全息图制备三维结构。