<正>1 Results Hyperbranched polymers can be easily functionalized,while the calixarene-rare earth complexes enjoy the advantages of narrow emission bands.It is expected that materials combining their advantages can possess good luminescence properties[1-2].For this reason,in this paper,a novel calixarene-containing hyperbranched aliphatic polyester incorporated with pendant europium complexes (H2O-Cal-Eu) was synthesized and characterized by FTIR,UV and element analysis.DSC measurement shows that the glass-transition temperature (Tg) of H2O-Cal-Eu is 127 ℃,which is higher than the Tg of H2O (30 ℃).TG measurement reveals that H2O-Cal-Eu has a good thermal stability,and there is no weight loss up to 280 ℃.The decomposition temperature (Td) of H2O-Cal-Eu is in the range of 280-500 ℃.The photoluminescence (PL) properties of H2O-Cal-Eu were investigated.As predicted,H2O-Cal was proved to be an excellent energy transfer ligand for Eu3+,with respect to photoluminescence.H2O-Cal-Eu emitted remarkably strong red luminescence.The luminescence spectra of the solid samples of complex show a narrow half spectral bandwidth of only about 10 nm,which is nearly monochromatic light.Calixarene-containing polymer incorporated with pendant Eu (Ⅲ) complexes H2O-Cal-Eu exhibits great potential as red emitting materials for future generations of electroluminescence devices.
