摘要
合成了(丙烯酸)二(α-噻吩甲酰三氟丙酮)钐[Sm(TTA)_2AA)]配合物,并通过本体聚合合成了Poly(MMA-co-Sm(TTA)_2AA)光致发光材料,采用红外光谱分析、示差扫描量热法、荧光光谱分析等进行了表征。结果表明,Poly(MMA-co-Sm(TTA)_2AA)在391 nm和415 nm的波长激发下在560 nm、596 nm、642 nm处发射出Sm3+的4G5/2→6H5/2,4G5/2→6H7/2,4G5/2→6H9/2跃迁的特征荧光,其发光强度优于配合物Sm(TTA)_2AA。而其玻璃化温度T g与聚甲基丙烯酸甲酯(PMMA)相比有所提高。
The complex Sm( TTA)2AA was synthesized,and Poly( MMA-co-Sm( TTA)2AA) photoluminescent polymer was prepared by coordination bulk polymerization of Sm( TTA)2AA and methyl methacrylate( MMA). The complex and polymer have been characterized by FT- IR,DSC,FS,etc. The results show that the Poly( MMA-co-Sm( TTA)2AA) exhibits strong characteristic luminescence of samarium ion4G5 /2→6H5 /2,4G5 /2→6H7 /2,4G5 /2→6H9 /2at 560,596,642 nm respectively under excitation with radiation of 391 and 415 nm and its luminescence strength is as high as that of the complex Sm( TTA)2AA. Moreover the glass transition temperature( T g) of the polymer is higher than those of PMMA.
出处
《稀土》
EI
CAS
CSCD
北大核心
2014年第1期56-60,共5页
Chinese Rare Earths
基金
陕西省科学技术研究中心发展计划项目(2012K08-22)