乙酸类稀土配合物/聚丙烯酰胺的合成及其发光性能  

Luminescence Properties of the Rare Earth Complex Acetic Acid/Polyacrylamide

作　　者：林美娟[1] 胡珍[1] 王文[1] 章文贡[1] 

机构地区：[1]福建师范大学化学与材料学院福建省高分子材料重点实验室,福建福州350007

出　　处：《发光学报》2010年第6期914-919,共6页Chinese Journal of Luminescence

基　　金：福建省高校服务海西建设重点项目(2009);福建省纳米重大专项(2005HZ01-5)资助项目

摘　　要：以小分子乙酸和乙酸铵为配体,合成了水溶性乙酸类稀土配合物NH4REAc(RE为Tb或Eu)。将该类配合物与水溶性丙烯酰胺单体通过水溶液聚合,得到了透明的聚丙烯酰胺光致发光材料(NH4REAc/PAM)。着重研究了配合物和聚合物发光性能。结果表明,NH4REAc配合物和NH4REAc/PAM聚合物均能发射很强的稀土Tb3+或Eu3+离子特征荧光;NH4TbAc和NH4TbAc/PAM中的Tb3+离子5D4→7F5均有较长的荧光寿命,形成聚合物后表观荧光寿命有所增加,但量子效率η却有所降低。The complexes of rare earth ion（Tb3＋,Eu3＋） with acetic acid and ammonium acetate ligand have been synthesized.The transparent photoluminescent polyacrylamide materials were prepared by aqueous polymerization with acrylamide monomer.Their fluorescent properties were studied.Both complex and polymer display strong characteristic emission of Tb3＋ ion or Eu3＋ ion.The decay curves of Tb3＋ ions 5D4→7F5 emission show that there are two fluorescent lifetimes of Tb3＋ ion 5D4→7F5 emission in both complex and polymer.The polymer has longer apparent fluorescent lifetime but lower quantum efficiency than corresponding complex.

关 键 词：稀土配合物 聚丙烯酰胺 荧光寿命 光致发光 

分 类 号：O623.6[理学—有机化学] O482.31[理学—化学]