Synthesis and Characterization of New Photoluminescent Oxadiazole/Carbazole-Containing Polymers
Synthesis and Characterization of New Photoluminescent Oxadiazole/Carbazole-Containing Polymers
复制标题
DOI：
10.1155/2010/581056
复制
发表时间：
2010-01-01
影响因子：
3.3
通讯作者：
Piotto, Stefano Piotto
中科院分区：
文献类型：
--
作者：
Concilio, Simona;Bugatti, Valeria;Piotto, Stefano Piotto
我们报道了一类含有恶二唑和咔唑单元的新型链段聚醚 POC 的合成和表征。尽管聚合物主链中存在扩展的芳香族部分，但该聚合物仍表现出高热稳定性、高玻璃化转变温度以及在常见有机溶剂中良好的溶解度。合成过程简单，无酸副产物。根据之前关于含恶二唑/咔唑材料的报道，POCs在可见光谱的蓝色区域表现出高光致发光活性。在氯酸盐溶剂中的良好溶解性允许通过旋涂制备厚度均匀的薄膜。 115-125℃范围内的玻璃化转变温度保证了室温下薄膜形貌的良好稳定性。唯一的例外是 POC(6)，由于其脂肪链部分较短，其溶解度较差且 T-g （170 摄氏度）较高。由于这些特性，聚合物 POC 是制造蓝光发射器件的潜在候选材料。
We report on the synthesis and the characterization of a new class of segmented polyethers POC containing the oxadiazole and carbazole units. The polymers exhibit a high thermal stability, high glass transition temperatures, and good solubility in common organic solvents, despite the extended aromatic portion in the main polymer chain. The synthetic procedures are simple, and no acid side-products are obtained. According to previous reports on oxadiazole/carbazole-containing materials, POCs show high photoluminescence activity in the blue region of the visible spectra. The good solubility in chlorinate solvents allows the preparation of films with homogeneous thickness by spin coating. Glass transition temperature in the range 115-125 degrees C ensures good stability of film morphology at room temperature. The only exception is POC(6), which shows a poor solubility and higher T-g (170 degrees C), due to its shorter aliphatic chain portion. For these features, polymers POC are potential candidate materials for fabricating blue light-emitting devices.