Preparation of amino-functionalized triazine-based hyper-crosslinked polymer for efficient adsorption of endocrine disruptors.

Herein, two novel amino-functionalized triazine-based hyper-crosslinked porous polymer (NH 2 -HCPs) (named as DPT-BB, DPT-DX) were designed and synthesized by direct crosslinking of 2,4-diamino-6-phenyl-1,3,5-triazine (DPT) with 4,4′-bis(chloromethyl)-1,1′-biphenyl (BB) or α, α′-dichloro-p-xylene (DX). Thanks to the amino functional group and hyper-crosslinked porous structure, NH 2 -HCPs displayed remarkable adsorption ability for phenolic EDCs. The adsorption mechanism mainly involved hydrogen bond, π-π interaction, hydrophobic interaction and pore filling. Thus DPT-BB was applied as solid phase extraction sorbent to extract phenolic EDCs from water and orange juice samples prior to quantitative analysis by high performance liquid chromatography. Under the optimal conditions, detection limit as low as 0.07–0.2 ng mL−1 for water and 0.1–0.27 ng mL−1 for orange juice was achieved. Good recoveries spanned the range of 83.5%–114% were obtained for spiked samples, with relative standard deviations below 8.9%. The results demonstrated that the developed method displayed excellent practicability for sensitive analysis of EDCs. [Display omitted] • A novel amino-functionalized triazine-based HCP (DPT-BB) was successfully fabricated. • DPT-BB contains amino-functional groups and a highly cross-linked porous structure. • DPT-BB showed significant adsorption capacity to EDCs. • DPT-BB was applied to sensitive determination of EDCs in water and juice samples. • Hydrogen bond and π-π interaction played an important role in the extraction. [ABSTRACT FROM AUTHOR]