Caruso Ugo, Diana Rosita, Tuzi Angela, Panunzi Barbara
Department of Chemical Sciences, University of Napoli Federico II, 80126 Napoli, Italy.
Department of Agriculture, University of Napoli Federico II, 80055 Portici NA, Italy.
Polymers (Basel). 2020 Mar 24;12(3):718. doi: 10.3390/polym12030718.
Two novel polyimines were synthesized from a benzodifuran based diamino monomer and two dialdehydes bearing bulky groups and a flexible spacer. The polymers display tuned luminescence performance according to the presence of half-salen groups. The effect of the intramolecular bond on the emission properties were examined. Two model compounds, replicating the same emissive Schiff base cores, were synthetized. From the models, dye-doped blends in the fluorophore/matrix ratio, resembling the polymers, were produced. Amorphous thin films of the covalent polymers and the polymeric blends were obtained by spin-coating technique. The Photoluminescent (PL) response of the different macromolecular systems were qualitatively and quantitatively examined and compared.
由一种基于苯并二呋喃的二氨基单体与两种带有庞大基团和柔性间隔基的二醛合成了两种新型聚亚胺。这些聚合物根据半萨伦基团的存在呈现出可调谐的发光性能。研究了分子内键对发射性质的影响。合成了两种复制相同发光席夫碱核心的模型化合物。从这些模型出发，制备了荧光团/基质比例与聚合物相似的染料掺杂共混物。通过旋涂技术获得了共价聚合物和聚合物共混物的非晶薄膜。对不同大分子体系的光致发光（PL）响应进行了定性和定量的研究与比较。
