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Fluorinated polyimides with fluorene cardo structure as optical materials that have low absolute thermo-optic coefficients
Fluorinated polyimides with fluorene cardo structure as optical materials that have low absolute thermo-optic coefficients
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机译:具有芴心型结构的氟化聚酰亚胺作为绝对热光系数低的光学材料
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摘要
The present invention provides new polyimide materials suitable for use in optically transparent fiber composites, ribbon composites, and optical communications applications. The polyimide compounds include monomeric repeat units comprising a fluorinated moiety and a fluorene cardo structure. The polyimides exhibit good optical transparency and have a low absolute thermo-optic coefficient (|dn/dT|).
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