Electrospinning preparation and oxygen sensing properties of dirhenium(Ⅰ) complex/polymer composite fibers
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摘要:合成了亲脂性双核铼配合物fac-[{Re(CO)3(d19phen)}2(4,4′bipyridylacetylene)](OTf)2,将此配合物均匀地分散到聚苯乙烯(PS)和聚甲基丙烯酸甲酯(PMMA)中,通过电纺方法,得到复合材料纤维,并系统地研究了它们的氧传感性能。分别用线性Stern Volmer模型,Demas双格位模型以及Lehrer模型对所得到的Stern Volmer曲线进行了拟合,实验结果表明,这种复合纤维氧传感材料显示了短的响应时间,可逆的氧传感信号,而且由于含有亲脂性的长链烷烃配体的存在,使得铼配合物在聚合物中分散均匀,从而得到线性关系较好的SternVolmer曲线。
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关键词:
- 氧传感/
- 电纺纤维/
- 双核铼(Ⅰ)配合物
Abstract:A novel lipophilic dirhenium complex fac-[{Re(CO)3(d19phen)}2(4,4′bipyridylacetylene)](OTf)2,(denoted as DRe(I))(d19phen=4,7dinonadecyl1,10phenanthroline and OTf=trifluoromethanesulfonate) was doped homogeneously in polystyrene(PS) and polymethyl methacrylate(PMMA) fibers by electrospinning method and the oxygen quenching fluorescence behavior was systematically investigated. The linear SternVolmer model, the Demas and Lehrer models were used to fit the obtained SternVolmer curves of the composite fibers. An oxygen sensor based on the DRe(I) composite fibers shows short response time, good reproducible signals, and linear SternVolmer plots attributed to the existence of the ligand containing long alkyl chain groups that makes DRe(I) become soluble in the polymers.-
Key words:
- oxygen sensing/
- electrospinning fiber/
- dirhenium(Ⅰ) complex
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