Synergistic Effect of Fluorination and Molecular Orientational Order Enhances Low-κ of Fluorinated Liquid Crystal Polymer Film
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With the introduction of 5G and the advent of 6G in no distant future, the need for fast transmission and reception speed, high-capacity communication, and simultaneous multi-terminal access without delay has become extremely important. Accordingly, to satisfy the high performance of 6G technology, the development of innovative materials is of an urgent matter. Materials with low dielectric constant and dielectric loss have garnered significant attention as they enable signal transmission without latency and minimize signal loss in the high-frequency band of 28 GHz band and above. Here, we fabricated freestanding fluorinated liquid crystal polymer films by delicately controlling fluorine contents and the degree of orientational order. An LC mixture is UV polymerized within a sandwich cell to give thin films. POM and SAXS analysis support highly oriented LC molecules. Additionally, the effect of fluorine and orientational order on the dielectric constant was examined.