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首页> 外文期刊>Journal of Applied Polymer Science >Dimedone and phenylazo dimedone chelates of europium as emitters in polymers
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Dimedone and phenylazo dimedone chelates of europium as emitters in polymers

机译：med的二甲酮和苯基偶氮二甲酮ed合物作为聚合物中的发射体

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摘要

Transparent polymers when incorporated with strongly fluorescent europium chelates were found to be responding to excitation with UV radiation. In this work, two novel europium chelates have been synthesized using the β-diketones dimedone and phenylazo dimedone along with 1,10-phenanthroline. These chelates were characterized by elemental analyses, magnetic susceptibility measurements, UV, IR, and ESI mass spectral techniques. The chelates synthesized with metal: β-diketone: 1,10-phenanthroline ratio 1: 3: 1 were incorporated into polymer matrices. Four polymers, polyethylene vinyl acetate or acetate (EVA), polystyrene (PS), poly methyl methacryalate (PMMA), and polyethylene glycol (PEG) were used for the studies. All these, except the liquid oligomer PEG were cast into thin films. PEG was used as such for the studies. The photoluminescence spectra of the plain polymers were found to be having peaks very close to the absorption peaks of the polymers doped with europium chelate. This observation can be used in optical devices. Thermal analyses like TG/DTG/DTA of the polymer films were conducted to ascertain the thermal stability of the material. The SEM analyses of the films indicated a smooth surface with uniform distribution of the doped chelate.
机译：当与强荧光euro螯合物结合时，发现透明聚合物对紫外线辐射的激发有响应。在这项工作中，使用β-二酮二酮和苯基偶氮二酮与1,10-菲咯啉合成了两种新颖的chel螯合物。这些螯合物的特征在于元素分析，磁化率测量，UV，IR和ESI质谱技术。将金属∶β-二酮∶1，10-菲咯啉比例为1∶3∶1合成的螯合物掺入聚合物基质中。四种聚合物，聚乙烯乙酸乙烯酯或乙酸乙烯酯（EVA），聚苯乙烯（PS），聚甲基丙烯酸甲酯（PMMA）和聚乙二醇（PEG）用于研究。除液态低聚物PEG外，所有这些均铸成薄膜。 PEG就这样用于研究。发现普通聚合物的光致发光光谱具有非常接近掺杂euro螯合物的聚合物的吸收峰的峰。该观察结果可用于光学设备。进行热分析，如聚合物膜的TG / DTG / DTA，以确定材料的热稳定性。膜的SEM分析表明，光滑的表面具有均匀分布的掺杂螯合物。

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