摘要
稀土离子与高分子配位基团直接成键而形成的稀土高分子配合物因其独特的荧光特性更受到各国科学工作者广为关注[1～4]. 尤其含铕稀土高分子化合物兼具稀土离子高发光特性与高分子化合物易加工特点, 可望成为一种具有高荧光效率、对光热稳定、分散均匀等特殊功能的新材料[5～6].
Poly-N-vinyl acetamide (PNVA) was synthesized by free radical polymerization. Then a series of complexes of Eu3+ with poly-N-vinyl acetamide were prepared by adding different amount of EuCl3 into the polymer. They were characterized by using UV-visual, IR and fluorescence spectroscopies. The results indicate that Eu3+ ion is incorporated with oxygen atoms of carbonyl in PNVA by electrostatic force. The fluorescence emission intensity was measured on solution samples. The coordination compound can emit red fluorescence at 613 nm after being excited by 277 nm ultraviolet rays, and the fluorescence strength reaches a maximum at an Eu3+ content around 0.226 wt%.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2003年第4期 599-602,共4页
Acta Polymerica Sinica
基金
江苏省高新技术项目，国家计委科研项目，国家自然科学基金
