Two oligomers with different molecular weight were produced. Fluorescence properties were examined both in solutions and in the solid state. In the solid state, molecular weight turned out to be an important factor influencing the aggregation structures and therefore the emission of the compounds, in colour and intensity. The neat compounds emit two different colours, blue and yellow, with increasing the molecular weight, whereas both compounds are blue emitters in solution and dispersed in host polymers. Dissolved in a LC host polymer and in a PVK matrix, they displayed noteworthy photoluminescence quantum yields.

中文翻译：

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两种含N，N'-（萘二甲酰基）双苯基亚胺的低聚物衍生的低聚物的颜色调节

制备了两种具有不同分子量的低聚物。在溶液和固态下都检查了荧光性质。在固态下，分子量是影响聚集结构并因此影响化合物的颜色和强度发射的重要因素。随着分子量的增加，纯净的化合物发出两种不同的颜色，蓝色和黄色，而这两种化合物都是溶液中的蓝色发射体，并分散在主体聚合物中。溶于LC主体聚合物和PVK基质中，它们显示出值得注意的光致发光量子产率。