Preparation And Properties Of Temperature Sensitive Paint Based Upon Europium Complex Probe Molecule

In this thesis paper,using EuCl3, TTA and bipyridyl as raw materials, the luminescent probe molecules Eu(TTA)3, Eu(bipy)3and Eu(bipy)2TTA were prepared separately. via polymerizing them with styrene(St) separately, the Eu(TTA)3/PS, Eu(bipy)3/PS, and Eu(bipy)2TTA/PS temperature sensitive paint(TSP) are obtained. The structure and properties of prepared probe molecules samples were examined by scanning electron microscope,infrared spectrum, ultraviolet absorption spectra and fluorescence spectrum.The infrared spectrum shows that TTA and bipyridyl were not destroyed. Ultraviolet absorption spectra shows that the absorption band of the probe molecule is226-370nm. Fluorescence spectrum of TSP sample shows that the emission peak of the sample is at614nm when the TSP was excited by340nm.In addition,the emission strength of the TSP decreaces with the increasing of temperature, This shows TSP has good temperature quenching property.