【作者】 雷娜娜； 伊思静； 王姣； 陈晓；

【Author】 Nana Lei;Sijing Yi;Jiao Wang;Xiao Chen;Key Laboratory of Colloid and Interface Chemistry,Shandong University,Ministry of Education;

【机构】 山东大学胶体与界面化学教育部重点实验室；

【摘要】 多金属氧酸盐（POMs）/阳离子表面活性剂复合物的自组装不仅能够提高POMs的可加工性,而且还能优化POMs的本征功能特性,拓展其应用范围。本文选取咪唑型阳离子表面活性剂1-十八烷基-3-甲基咪唑溴盐(C₁₈mimBr)与含铕多金属氧酸盐Na₉EuW₁₀O₃₆(EuW₁₀)通过单相法制备了复合物SEP。荧光性能的测试表明,SEP固体的荧光寿命及量子产率相比Eu W₁₀都有效提升,同时也优于季铵盐型表面活性剂/含铕POMs复合物的发光性能[1,2]。将SEP引入到离子液体硝酸乙基铵中,组装得到了单色性明显提高的稀土发光软材料。同时,有机软材料基质也使配体到金属的电荷转移带到Eu³⁺的能量转移更加有效。在含不饱和基团的离子液体1-乙烯基-3-甲基咪唑四氟硼酸盐（[Vbim]BF4）中,SEP同样能够自组装得到有序发光软聚集体,进一步的原位光聚合可得到具有自支撑特性的稀土有序发光膜材料。更多还原

【Abstract】 Hybridization of polyoxometalates(POMs) with cationic surfactants offers the opportunity that their functionalities as well as processabilities could be greatly improved.Here,by firstly forming surfactant-encapsulated Na9 EuW10 O36(SEP) through electrostatic interaction between the cationic imidizalium ions of surfactant 1-octadecyl-3-methylimidazolium bromide(C18 mimBr) and the [EuW10 O36]9-polyanion nanoclusters,the amphiphilic building block was formed.Fluorescence spectroscopy demonstrated that compared with Na9 EuW10 O36,the lifetime and quantum efficiency of SEP amorphous powder were better,much higher than those of complexes formed by quaternary ammonium surfactants and Eu-containing POMs as well[1,2].We firstly constructed soft luminescent materials by SEP in ionic liquid EAN,which significantly enhanced monochromaticity of emission light owning to the organized arrangement of Eu3+ and resulted in a more efficient transition from O→W LMCT band to Eu3+ due to soft support nature of the organic matrix.The soft luminescent materials can be further in-phase polymerized to facilely prepare flexible luminescent film with well-organized nanostructures if unsaturated ionic liquid 1-vinyl-3-methylimidazolium tetrafluoroborate([Vbim]BF4) was used.更多还原