Synthesis of Fluorescent Micro- and Mesoporous Polyaminals for Detection of Toxic Pesticides

• DOI: 10.1021/acs.macromol.7b02669
• Publication Date: 2018-02-20T17:57:23Z
• Authors: Biao Zhang; Jun Yan; Yingqi Shang; Zhonggang Wang
• Keywords: Trifluralin; Chromophore; Molecularly imprinted polymer; Triphenylamine

This paper presents the first report on employing fluorescent porous organic polymers as sensors for detection of toxic pesticides. Specifically, micro- and mesoporous polyaminals with pendant triphenylamine dibromotriphenylamine chromophore groups are synthesized, which exhibit BET surface area up to 507 m2 g–1, adjustable pore sizes in range from 0.5 36.2 nm can emit bright turquoise light under ultraviolet lamp. Using insecticide (fenitrothion) herbicides (trifluralin glyphosate) analytes, chemosensing properties investigated by correlating porosity parameters chemical structure molecular energy lowest unoccupied orbital Moreover, effects different acid–base conditions solvents including ethanol, water, chloroform, tetrahydrofuran, N,N-dimethylformamide sensitivity also studied detail. Particularly, test fabricated polymer rapidly becomes dark upon contacting pesticide solutions at an extremely low concentration, quenching degree is unchanged after repeating experiments 10 times, exhibiting capability sensible reusable