以Eu(DBM)_3Bipy为荧光探针的温敏漆的制备及性能表征  

Preparation and Properties of Temperature Sensitive Paint Based on Eu(DBM)_3Bipy as Fluorescence Probe

作　　者：陆思宇[1] 刘旭日 毕冠 王耀楷 田皓天 孙晶[1] LU Si-Yu;LIU Xu-Ri;BI Guan;WANG Yao-Kai;TIAN Hao-Tian;SUN Jing(College of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Changchun 130022,China;College of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 102488,China)

机构地区：[1]长春理工大学化学与环境工程学院,长春130022 [2]北京理工大学化学与化工学院,北京102488

出　　处：《无机化学学报》2018年第4期683-688,共6页Chinese Journal of Inorganic Chemistry

摘　　要：利用氯化铕(EuCl_3)、二苯甲酰甲烷(DBM)和联吡啶(Bipy)为原料合成了Eu(DBM)_3Bipy探针分子,并将探针分子掺入到甲基丙烯酸甲酯(MMA)中,在过氧化苯甲酰(BPO)引发剂的作用下聚合,获得温敏漆Eu(DBM)_3Bipy/PMMA。采用红外光谱仪、紫外吸收光谱仪、扫描电子显微镜和荧光光谱仪对探针分子的结构、形貌、发光性能和温敏漆的温度猝灭性能进行了表征。红外及紫外吸收光谱分析发现稀土离子Eu3+与配体配位成键,成功合成Eu(DBM)_3Bipy探针分子;扫描电镜及能谱分析表明Eu(DBM)_3Bipy探针分子呈碎片状,大小约为150 nm,且主要由C、N、O和Eu四种元素组成;荧光光谱表明,在367 nm激发下,Eu(DBM)_3Bipy探针分子的最佳发射波长位于612 nm,且第二配体Bipy对Eu(DBM)_3的荧光发射具有增益作用。在不同温度下测试温敏漆的荧光发射特性,发现温敏漆Eu(DBM)_3Bipy/PMMA在40~90℃温度区间内具有良好的荧光温度猝灭特性,测温灵敏度最高的温度区间位于40~60℃。Probe Eu(DBM)3Bipy was prepared by europium oxide(Eu2Os),dibenzoylmethane(DBM)and 2-2#-dipyridyl(Bipy).The temperature sensitive paint(TSP)was compounded by the polymerization of the probe molecule,methyl methacrylate(MMA)and the initiator of benzoyl peroxide(BPO).The structure,morphology,luminescence property of probe molecule and the temperature quenching property of the temperature sensitive paint(TSP)was characterized by infrared spectrometer,UV-Vis spectrometer,scanning electron microscopy and fluorescence spectrometer.The results of infrared and UV absorption spectrum analysis showed that the rare earth ion Eu3+coordinates to ligands and Eu(DBM)3Bipy probe molecule was successfully synthesized.Scanning electron microscopy spectrum and energy spectrum analysis showed that Eu(DBM)3Bipy probe molecule is fragmented,and t'e size is about 150 nm,which is mainly composed of four elements,C,N,O and Eu.The fluorescence spectra showed that the optimum emission wavelength is 612 nm under 367 nm excitation,and Bipy as second ligand has a gain effect on Eu(DBM)3.Temperature sensitive paint fluorescence emission characteristics test under different temperature conditions,found that t'e temperature sensitive paint Eu(DBM)3Bipy/PMMA has good characteristics of fluorescence quenching of temperature in 40?90!,and the temperature range of the highest temperature sensitivity at 40~60℃.

关 键 词：温敏漆 探针分子 温度猝灭 

分 类 号：O614.338[理学—无机化学]