分别将脂环族二酐单体1,2,3,4-环丁烷四酸二酐(CBDA,I)、1,2,4,5-环戊烷四酸二酐(CPDA,II)和1,2,4,5-环己烷四酸二酐(CHDA,III)与芳香族含氟二胺1,4-双(4-胺基-2-三氟甲基苯氧基)苯(6FAPB,a)和4,4'-双(4-胺基-2-三氟甲基苯氧基)联苯(6FBAB,b)反应制备两个系列的含氟半脂环族聚酰亚胺(PI),研究了PI薄膜的热性能和光学性能.结果表明,制备出的PI薄膜具有良好的热稳定性,在氮气中起始热分解温度超过450℃、玻璃化转变温度超过250℃,在可见光范围内(400-700 nm)具有优良的透明性,450 nm处的透过率超过88%.两类PI薄膜在光通讯波段(1.30 μm与1.55 μm)均没有显著的吸收.
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