【摘要】 通过Heck缩聚反应合成了2种以三苯胺为核的"A2+B3"聚对苯乙烯撑型超支化共轭聚合物.通过FT-IR,1HNMR,GPC和TGA等测试对聚合物进行了表征.此类超支化聚合物具有良好的溶解性和热稳定性.通过紫外吸收光谱,荧光发射光谱表征了聚合物的光化学性能,并首次对含硝基芳香烃淬灭其溶液荧光的能力进行了初步研究.此类聚合物不仅合成较为容易,检测的灵敏度也较高,是一类潜在的检测含硝基芳香烃爆炸物的荧光传感器材料.更多还原

【Abstract】 Two new PPV-like hyperbranched conjugated polymers with triphenylamine as the core were synthesized through Heck condensation reaction.The polymers were characterized by FT-IR,1H NMR,GPC and TGA.The polymers have good solubility and thermal stability.The photochemical properties of polymers were revealed by UV and PL spectra and the fluorescence quenching properties of polymers toward nitro-aromatic compounds were first studied.Such polymers are easy to be synthesized and have good quenching sensitivity.It indicates that they have the potential to be used as fluorescence sensing material for detecting nitro-aromatic explosives.更多还原