Diketopyrrolopyrrole-based moiety was polymerized with tetrakis(4-ethynylphenyl)methane to afford a porous organic polymer with good porosity and accessible active sites. This polymer inherited the fluorescent nature of parent monomer and underwent colorimetric and fluorescence change upon the exposure to fluoride anions. Remarkably, a superior selectivity towards fluoride anions was observed with the limit of detection of 18 ppb. Moreover, the polymer could be recycled several times. Finally, the porous organic polymer was successfully immobilized on a macroporous sponge to obtain a fluorescence sensing device, which was efficient in detection and was easier to handle when compared with the device obtained using polymer powder.

中文翻译：

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基于二酮吡咯并吡咯的荧光多孔有机聚合物，用作氟化物传感整体装置†

将基于二酮吡咯并吡咯的部分与四（4-乙炔基苯基）甲烷聚合，以提供具有良好孔隙率和可及的活性位点的多孔有机聚合物。该聚合物继承了母体单体的荧光性质，并在暴露于氟阴离子后进行了比色和荧光变化。显着地，观察到对氟阴离子的优异选择性，检出限为18 ppb。而且，该聚合物可以被回收几次。最后，将多孔有机聚合物成功地固定在大孔海绵上以获得荧光感测装置，与使用聚合物粉末获得的装置相比，该装置感测效率高并且易于操作。