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Effect of Crystallinity on Surface Morphology and Light Transmittance of Poly(vinylidene fluoride-co-hexafluoropropylene) Thin Film

机译:结晶度对聚偏二氟乙烯-共-六氟丙烯薄膜的表面形貌和透光率的影响

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摘要

Homopolymer of vinylidene fluoride and its copolymers containing hexafluoropropylene (HFP) were prepared from free radical solution polymerizations and spin-coated on the glass slides to fabricate thin film with a thickness of similar to 1 mu m. It was found that the surface morphology of fluorinated thin films was strongly dependent on the crystallinity of polymers, In addition, the surface morphology was the most important factor to determine the optical transmittance of glass coated with the fluoropolymer thin film. As decreasing the crystallinity of the polymer by introducing HFP with a bulky CF3 moiety, the surface of thin film became flattened and the transmittance of visible light was increased by reducing scattering.
机译:偏二氟乙烯的均聚物及其包含六氟丙烯的共聚物(HFP)是通过自由基溶液聚合反应制备的,并旋涂在载玻片上以制造厚度约为1微米的薄膜。发现氟化薄膜的表面形态强烈依赖于聚合物的结晶度。另外,表面形态是确定涂覆有氟聚合物薄膜的玻璃的光学透射率的最重要因素。通过引入具有大体积CF 3部分的HFP而降低聚合物的结晶度时,薄膜的表面变得平坦,并且通过减少散射来增加可见光的透射率。

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