荧光聚苯乙烯纳米管/线的制备及研究

Fabrication and Characterization of Fluorescence Polystyrene Nanotubes/Nanowires

以邻菲罗啉和乙酰水杨酸为配体通过溶液共沉淀法合成了铕的配合物Eu(aspirin)3phen,并将铕的配合物掺杂在聚苯乙烯的有机溶液中,利用多孔阳极氧化铝(AAO)模板浸润法制备了荧光聚苯乙烯纳米管/线阵列。通过扫描电子显微镜(SEM),透射电子显微镜(TEM)研究了荧光纳米管/线的形貌和结构。通过红外光谱分析了配合物在聚苯乙烯中的分布方式以及配合物与聚苯乙烯的相互作用,并初步探讨了荧光纳米管/线的生长机制。利用荧光光谱研究了铕配合物及荧光纳米管/线的荧光发光性质。扫描电镜测试结果表明所制得的一维荧光纳米管/线阵列排列规整,直径与AAO模板的孔径一致。透射电镜测试表征了纳米管的管状结构,并证明了铕配合物的存在。红外光谱显示稀土配合物颗粒嵌在聚合物中,与聚合物基质以物理方式相结合。荧光光谱测试表明了稀土配合物具有优良的发光特性。经掺杂制得的荧光聚苯乙烯纳米管/线仍然保持了良好的发光性质,且纳米管阵列的荧光强度随配合物的掺杂含量变化而变化。

： The complexes of europium with salicylic acid and 1,10-phenanthroline were synthesized by coprecipitation method, and were mixed in the polystyrene （PS） organic solution. The fluorescent PS nanotubes were successfully prepared by depositing a solution of polymer into porous anodic aluminum oxide membrane. The microstructure and morphology of the fluorescent PS nanotubes were in- vestigated by scanning electron microscopy （SEM） and transmission electron microscopy （TEM）. The dispersed mode of the comple- xes in the PS and the interaction between the complexes and PS were studied by the infrared spectroscopy. The formation mechanism of the fluorescent PS nanotubes/nanowires was also discussed. The fluorescence properties of the composite nanotubes were also investiga- ted by fluorescence spectra. The SEM results indicated that the well-ordered fluorescent PS nanotubes/nanowires could be obtained and the diameter was consistent with the diameter of the template pores. The test of TEM showed the fluorescent PS nanotubes structure and proved the existence of the Eu complex. The infrared spectroscopy showed that the rare earth complexes particles were embedded in the polymer and combined with the polymer matrix in a physical way. The fluorescence spectra showed that the Eu complex had good fluo- rescence properties. The composite nanotubes retained the fluorescence characteristics of Eu complex, and its fluorescence intensity in- creased with the increase of mass fraction of Eu（ aspirin）3Phen in PS nanotubes.