Tb(p-ABA)_2(acac)phen-TDI-MDA共聚物合成及其性质  

Synthesis and Properties of Copolymer: Tb(p-ABA)_2(acac)phen-TDI-MDA

作　　者：周新木[1] 谈宏宇[1] 余文娟[1] 赵光好[1] 徐招弟[1] 

机构地区：[1]南昌大学化学系,江西南昌330047

出　　处：《稀有金属》2006年第4期475-479,共5页Chinese Journal of Rare Metals

摘　　要：以对氨基苯甲酸、β-二酮和邻菲哆啉为配体合成了一种高荧光强度、高缩聚活性的铽配合物单体,并将铽配合物单体与TDI,MDA进行共缩聚,合成了含稀土配合物的聚脲共聚物。通过元素分析、摩尔电导、红外光谱、X射线光电子能谱和荧光光谱对配合物和共聚物的结构和性质进行了表征。结果表明:配合物具有高的荧光强度,在DMF中配合物为非电解质,铽配合物参与了共缩聚反应,共聚物的发射光谱与配合物相似,荧光强度随铽配合物含量增加而增强。采用高浓度的酸碱对键合型聚脲共聚物和直接掺杂型稀土配合物/聚脲进行长时间浸泡,结果表明键合型聚脲共聚物比直接掺杂型稀土配合物/聚脲具有更好的荧光稳定性。A new complex with the activity of condensation polymerization and high fluorescence efficiency was synthesised by p-amino benzoic acid,β-diketone, 1,10-phenanthroline and TbCl3 ; novel copolymer was synthesised by the co-polymerization of TDI, MDA and terbium complex containing amino group. The structure and properties of complex were characterized by elemental analysis, molar conductivity, FT-IR, XPS and fluorescence spectroscopy. The results show that rare earth complex exhibits higher luminescence intensty and it is non-electrolyte in the solvent of DMF, rare earth complex participates in co-polymerization, the emission spectrum of copolymer is similar to that of the complex, additionally the fluorescence intensity increases with increasing of the rare earth complex content. The bonding-type rare earth copolymer and doping-type rare earth copolymer are soaked in acid and alkali of the high concentration for a long tine, the results indicate that the bonding-type rare earth copolymer has better fluorescence stabilities.

关 键 词：铽配合物单体 共缩聚 稀土聚脲共聚物 荧光防伪纤维 

分 类 号：O614.33[理学—无机化学]