新型含噁二唑环聚酰胺蓝色发光材料的合成及性质

Synthesis and properties of novel polyamides incorporting oxadiazole ring as blue luminescent materials

单体2,5-二(4-氨基苯基)-1,3,4-噁二唑与二酸缩聚得到5个新型的含噁二唑环的聚酰胺,通过1HNMR、FT-IR对其结构进行表征。研究了它们的紫外-可见吸收光谱、荧光光谱和热稳定性能。结果表明:聚酰胺在326～339nm出现最大吸收,发射强的蓝色荧光,最大发射峰出现在392～435nm,在202～270℃失重10%,是一类热稳定性能高的蓝光发光材料。

Five novel polyamides were obtained by the polymerization of 2,5-bis（4-aminophenyl）-1, 3,4-oxadiazole and diacid. These polyamides were characterized by 1H NMR and FT-IR. The UV-Vis spectroscopy, as well as fluorescent spectroscopy and thermal property were studied, the results showed that the maximum absorptive wavelength were detect at 326-339nm, they were found emitting strong blue fluorescence, the emissive maximum wavelength of polyamides were from 392nm to 435nm, 10% weigh loss temperature of polyamides were 202-270℃. The results showed that the target polymer was a kind of blue luminescent materials which had excellent thermal property.