作者:G. Nagarjuna、Abhishek Kumar、Akshay Kokil、Kedar G. Jadhav、Serkan Yurt、Jayant Kumar、D. Venkataraman
DOI:10.1039/c1jm12949j
日期:——
Optical sensing, via fluorescence quenching, of nitroaromatic vapours using polythiophenes has received limited attention due to their rather low sensory response. We hypothesized that a dipolar 1,2,3-triazole moiety can enhance the interaction of DNT and TNT with the polymer in thin films and bulky side chains can decrease the chain packing in thin films resulting in enhanced analyte diffusion. Herein we show that thin films of thiophene-based polymers containing 1,2,3-triazole with appropriate alkyl side chains show enhanced fluorescence quenching in the presence of nitroaromatic vapours.
通过荧光猝灭对含有聚噻吩的硝基芳烃蒸气进行光学传感的研究受到的关注有限,因为其感应响应相对较低。我们假设,极性1,2,3-三唑部分能够增强DNT和TNT与聚合物在薄膜中的相互作用,而笨重的侧链可以降低薄膜中的链堆积,从而增强分析物扩散。本研究表明,含有适当烷基侧链的1,2,3-三唑的噻吩基聚合物薄膜在存在硝基芳烃蒸气时显示出增强的荧光猝灭现象。