摘要
由二(4′-甲酰肼基苯基)-二甲基硅烷与苯甲醛、4-乙氧基苯甲醛和4-己氧基苯甲醛为原料经缩合反应合成了一系列含有Si的双醛腙类化合物。通过红外、核磁和飞行时间质谱确定其结构;通过紫外、荧光、热重以及差示扫描量热对化合物的性能进行表征。测试结果表明其最大吸收波长在305~320nm之间,溶液中荧光发射波长处于378~423nm之间,固态时荧光发射波长处于387~441nm之间,荧光量子产率在0.38~0.44之间。在热稳定性方面,其热分解温度均大于300℃,熔点在210℃以上,且玻璃态转化温度在139~200℃之间,具有良好的热稳定性。
4,4′-（dimethylsilanediyl）di（benzohydrazide）and benzaldehyde,4-ethoxy benzaldehyde,4-hexyloxy benzaldehyde as starting materials were used to synthesize a series of silicon-linked dialdehyde hydrazone compounds by the condensation reaction.The compounds were characterized by FT-IR,NMR,TOF,UV-Vis,fluorescence spectroscopy,TGA and DSC.The photophysical properties of target compounds showed that the maximum absorption wavelengths ranged from-305 nm to 320 nm,the maximum emission wavelengths in DMF were between 378 nm and 423 nm,the maximum emission wavelengths in solid state were at about 387-441nm,the fluorescence quantum yields were from 0.38 to 0.44.The thermal decomposition temperature of compounds were more than 300℃ and their melting points were all above 210℃ and their glass transition temperature were between 139 and 200℃ which showed that their thermal stability were good.
出处
《化工新型材料》
CAS
CSCD
北大核心
2017年第2期98-100,共3页
New Chemical Materials
基金
国家自然科学基金(21442004)
吉林省科技厅自然科学基金(20101548)
关键词
硅
双醛腙
合成
荧光
silicon
dialdehyde hydrazone
synthesis
fluorescence
