科研之友
微信
新浪微博
Facebook
分享链接
摘要
The conjugated polymer with strong green-blue fluorescence was obtained by the polymerization of 1,4-ibromo-2, 3-naphtho- 18-crown-6(M-2) and 1,4-divinyl-2, 5-dibutoxybenzene(M-3) via Pd-catalyzed Heck coupling reaction. The responsive properties of the polymer on metal ions were investigated by fluorescent and absorption spectroscopy. The results indicate that Hg(2+) Can effectively quench the fluorescence and apparently enhance the absorption of the polymer, whereas, As(III), Pb(2+) and K(+) do not produce obvious fluorescence change of the polymer. The results also show that the conjugated polymer incorporating 2, 3-naphtho-18-crown-6 as fluorophore and recognition site can act as a special fluorescent chemosensor for Hg(2+) detection.
