Synthesis and Properties of 2-Phenylbenzoxazole-Based Luminophores forin situ Photopolymerized Liquid-Crystal Films
作者:Raquel Giménez、Luis Oriol、Milagros Piñol、José Luis Serrano、Ana I. Viñuales、Thomas Fisher、Joachim Stumpe
DOI:10.1002/hlca.200690035
日期:2006.2
electronic properties of the aromatic PBO core than other possibilities. This particular combination gives luminophores that are suitable for optical applications on the basis of their high emission efficiency and photostability. In view of that, oriented films were prepared by in situ polymerization of a mixture of a liquid crystalline direactive matrix containing 5% (w/w) of the luminophore. The films
我们报告了在苯并恶唑环和对位的5或6位取代的一系列发蓝色光的2-苯基苯并恶唑(PBO)的合成苯基取代基的-位。可以根据在苯并恶唑部分上的取代基的位置以及取代基的吸电子或供电子特性来合理化材料的热和光学性质。从结果可以得出结论,与其他可能性相比,苯并恶唑片段上的给电子取代基和苯基片段上的吸电子取代基对芳族PBO核的电子性能的影响更为明显。这种特殊的组合基于其高发射效率和光稳定性,提供了适用于光学应用的发光体。有鉴于此,通过原位制备取向膜含有5%(w / w)发光团的液晶双反应基质混合物的聚合。膜表现出线偏振发射。