摘要
近年来,三氟甲基(-CF3)和三氟甲氧基(-OCF3)基团因其独特的性质,在药物领域得到了广泛应用。但截至目前,它们在电致变色领域的应用仍十分有限。在本研究中,以3,4-乙烯二氧噻吩(EDOT)为末端单元,三氟甲基/三氟甲氧基苯单元为核心单元,通过Stille偶联反应合成了四种不同的三氟甲基化/三氟甲氧基化单体。随后,采用电化学聚合法成功制备了P(TFOB-2,5-EDOT)和P(TFB-2,5-EDOT)两种聚合物薄膜。利用电化学技术和光谱电化学方法测试了单体及相应聚合物的电化学活性和电致变色性能。结果表明,P(TFB-2,5-EDOT)聚合物具有优异的着色效率(168.1 cm^(2)·C^(-1))、高光学对比度(37.1%)以及良好的光学稳定性和记忆效应。
In recent years,the trifluoromethyl(-CF₃)and trifluoromethoxy(-OCF₃)groups have been extensively utilized in drug development due to their unique electronic and physicochemical properties.However,their applications in electrochromic materials remain relatively limited.Herein,the synthesis of four novel trifluoromethylated/trifluoromethoxylated monomers using 3,4-ethylenedioxythiophene(EDOT)as the terminal unit and trifluoromethylated/trifluoromethoxylated benzene units as the core was reported.These monomers were then polymerized via electrochemical methods to yield P(TFOB-2,5-EDOT)and P(TFB-2,5-EDOT)polymer films.The electrochemical activities and electrochromic properties of both the monomers and their corresponding polymers were systematically investigated using electrochemical techniques and spectroelectrochemistry.The results demonstrated that P(TFB-2,5-EDOT)exhibited excellent coloring efficiency(168.1 cm^(2)·C^(-1)),high optical contrast(37.1%),and excelient optical stability and memory effect.
作者
杨留阳
沈双来
莫代泽
YANG Liuyang;SHEN Shuanglai;MO Daize(School of Applied Physics and Materials,Wuyi University,Guangdong Jiangmen 529020,China)
出处
《广州化工》
2026年第1期64-69,94,共7页
GuangZhou Chemical Industry
关键词
电致变色
三氟甲基/三氟甲氧基
EDOT
电化学聚合
electrochromic
trifluoromethylated/trifluoro-methoxylated benzene
EDOT
electrochemical polymerization
