Eu(Ⅲ)-聚N-乙烯基乙酰胺高分子配合物的合成及光谱性质研究

Poly N vinyl acetamide(PNVA) was synthesized by free radical polymerization.Then a series of complexes of Eu 3+ with poly N vinyl acetamide were prepared by adding different amount of EuCl\-3 into the polymer.They were characterized by using UV\|visual,IR and fluorescence spectroscopies.The results indicate that Eu\+\{3+\} 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 Eu 3+ content around 0 226?wt%.