| 摘要 |
The invention is a process for preparing a polymeric liquid crystal composition, e.g., a film or fiber, comprising aligning a nematic or smectic monomeric mesophase (liquid crystal monomer) and photopolymerizing the mesophase, characterized in that the mesophase is aligned in a multi-oriented state prior to photopolymerizing the mesophase. Preferably, alignment is a two or more step process wherein the first step comprises aligning the mesophase in a homeotropic or homogeneous alignment using conventional techniques or linearly polarized light (described below), and the second and subsequent steps comprise aligning a portion of the mesophase using linearly polarized light. In a second embodiment, the invention is a liquid crystal polymer composition, such as a film or fiber, comprising polymeric liquid crystals having aligned multiple oriented mesogens. The composition is preferably in the form of a film or fiber which is adhered to a substrate, part of a liquid crystal display cell, or a free standing polymeric film or fiber.
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