摘要
通过先聚合再配合的方法成功制备了两种羧酸类大分子稀土铕配合物PAA-Eu和ST-AA-Eu,并将其与合成的小分子稀土配合物Eu(AA)3形成对比。经红外光谱初步表征发现稀土配合物已经配位成功且其配位数为6。分别采用凝胶渗透色谱(GPC)和等离子发射光谱(ICP)分析大分子稀土配合物的分子量与稀土铕的含量。由TG分析配合物的分解温度并了解其热稳定性能和组分,采用荧光激发发射光谱研究其荧光性能,采用SEM分析配合物与基质的相容性。结果表明,大分子稀土配合物的热稳定性稍差于小分子稀土配合物,其中ST-AA-Eu由于苯环的介入热稳定性能稍好。小分子稀土配合物Eu(AA)3的荧光强度明显要比大分子稀土配合物强,大分子稀土配合物PAA-Eu的荧光强度比ST-AA-Eu强,配合物都发红光;大分子稀土配合物与基质的相容性比小分子稀土配合物好。
Two kinds of carboxylic acids macromolecules europium complexes PAA-Eu,ST-AA-Eu were successfully prepared by first polymerization method and were compared with small molecular rare earth complexes Eu（AA）3.IR characterization demonstrated that the ligand lanthanide complexes were successfully prepared.The macromolecular lanthanide complexes molecular weight and europium content were analyzed by GPC and ICP.TG indicated that the thermal stability of macromolecular rare earth complexes is worse than small molecules.Fluorescence excitation and emission spectra suggested that small molecule lanthanide complexes Eu（AA）3 fluorescence intensity is significantly larger than macromolecular lanthanide complexes,fluorescence intensity of macromolecular lanthanide complexes PAA-Eu is slightly stronger than ST-AA-Eu,and all complexes glow red.SEM analysis shows that compatibility of lanthanide complexes with macromolecular matrix is better than small molecules.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第2期40-42,共3页
Materials Reports
基金
江苏省太阳能电池材料与技术重点实验室开放基金
常州市科技支撑计划(CE20130070)
关键词
羧酸配合物
稀土铕
大分子稀土配合物
荧光性能
carboxylic acid complexes
europium
macromolecular lanthanide complexes
fluorescence property
