含有具有电致变色和电荧光变色特性的柔性咔唑嵌段的新型聚酰亚胺。
Novel polyimides containing flexible carbazole blocks with electrochromic and electrofluorescencechromic properties.
作者信息
Zheng Rongrong, Huang Tao, Zhang Zhipeng, Sun Zhiyao, Niu Haijun, Wang Cheng, Wang Wen
机构信息
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Science and Engineering, School of Chemical, Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
School of Materials Science and Engineering, Harbin Institute of Technology Harbin 150080 P. R. China.
出版信息
RSC Adv. 2020 Feb 14;10(12):6992-7003. doi: 10.1039/c9ra10515h. eCollection 2020 Feb 13.
A series of polyimides (PIs) were prepared by polycondensation of a diamine monomer with five anhydrides (1,2,4,5-benzenetetracarboxylic anhydride (BTA), 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTD), 3,3',4,4'-biphenyltetracarboxylic dianhydride (BTD), 4-[(1,3-dihydro-1,3-dioxo-5-isobenzofuranyl)oxy]-1,3-isobenzofurandione (DDII), and 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BPTD)), which have anodic electrochromic (EC) properties. These PIs not only show good solubility and thermal stability, but also demonstrate stable electrochemical oxidation behavior and good EC properties, and the highest retained electroactivity reaches 99% after 600 cycles. In addition, the series of PIs exhibit excellent electrofluorescencechromic (EFC) properties. Therefore, the novel materials will contribute to the application of EC or EFC displays in the future.
通过二胺单体与五种酸酐（1,2,4,5-苯四甲酸酐（BTA）、1,4,5,8-萘四甲酸二酐（NTD）、3,3',4,4'-联苯四甲酸二酐（BTD）、4-[(1,3-二氢-1,3-二氧代-5-异苯并呋喃基)氧基]-1,3-异苯并呋喃二酮（DDII）和3,3',4,4'-二苯甲酮四甲酸二酐（BPTD））缩聚制备了一系列具有阳极电致变色（EC）性能的聚酰亚胺（PI）。这些聚酰亚胺不仅具有良好的溶解性和热稳定性，还表现出稳定的电化学氧化行为和良好的电致变色性能，在600次循环后最高保留电活性达到99%。此外，该系列聚酰亚胺还表现出优异的电荧光变色（EFC）性能。因此，这些新型材料将有助于未来电致变色或电荧光变色显示器的应用。
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