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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and photoluminescent characterization of poly(phenylene vinylene)/TiO _2 nanoparticles composite nanofibers by one-step electrospinning
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Preparation and photoluminescent characterization of poly(phenylene vinylene)/TiO _2 nanoparticles composite nanofibers by one-step electrospinning

机译：一步电纺丝法制备聚苯撑亚乙烯/ TiO _2纳米复合纳米纤维及其光致发光特性

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摘要

A simple electrospinning progress, directly mixing method, was used to produce ultrafine poly(phenylene vinylene)/TiO _2 (PPV/TiO _2) composite nanofibers with diameters ranging from 100 to 300 nm. The effects of different TiO _2 content on diameter, morphology, and structure of composite fibers were analyzed by scanning electron microscopy and transmission electron microscope. The results showed that composite polymer nanofibers with smooth surface were obtained when TiO _2 concentration was below 18 wt %. The surface of the composite nanofibers became rougher with the increase of TiO _2 content. The optical properties of the as-prepared nanofibers were characterized by photoluminescence spectra and photographs, the results showed an increase in intensity of the high-energy shoulder (510 nm) when the concentration of nanoparticles increased. X-ray diffraction measurements showed that the increasing TiO _2 content enhanced the amorphous phase of PPV in composite nanofibers.
机译：采用简单的静电纺丝工艺，直接混合的方法，制备了直径为100-300 nm的超细聚苯撑亚乙烯/ TiO _2（PPV / TiO _2）复合纳米纤维。通过扫描电镜和透射电镜分析了不同的TiO _2含量对复合纤维直径，形貌和结构的影响。结果表明，当TiO _2浓度低于18 wt％时，可获得具有光滑表面的复合聚合物纳米纤维。随着TiO _2含量的增加，复合纳米纤维的表面变得更粗糙。通过光致发光光谱和照片表征了所制备的纳米纤维的光学性质，结果表明，当纳米粒子的浓度增加时，高能肩部（510 nm）的强度增加。 X射线衍射测量表明，增加的TiO _2含量增强了复合纳米纤维中PPV的非晶相。

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