Li, Lingxiao; Liu, Xueyan; Xu, Jianhong; Kan, Chengyou published the artcile< Microfluidic preparation of thiol-containing monodisperse polymer microspheres and their adsorption of Pb2+ in water>, SDS of cas: 2127-03-9, the main research area is microfluidic thiol group micronscale polymer microsphere lead ion adsorption.
A novel polymerizable monomer containing carbon-carbon double bond and disulfide bond, 2-(((2-(pyridin-2-yldisulfanyl)ethoxy)carbonyl)amino) Et acrylate (PDSECAE), was first designed and synthesized, and then used to prepare thiol-containing monodisperse polymer microspheres with different sizes from 20 μm to 500 μm by means of microfluidic technique, UV-induced polymerization and dithiothreitol reduction in sequence. The chem. structures of PDSECAE and the microspheres were confirmed by NMR, FTIR and RAMAN, and the thiol content was determined by UV-vis spectrophotometer. Having the largest sp. surface area, microspheres of 20.0 μm in diameter were utilized in adsorption of Pb2+ in water, and the maximum adsorption capacity reached 104.4 mg/g at pH 6.0 and 25 °C. After the adsorbed Pb2+ was removed by EDTA disodium salt, the regenerated thiol-containing microspheres could be reused and their adsorption capacity still remained 85% of its initial value after 5 recycles. Efficient adsorption performance and easy reusability make the thiol-containing polymer microspheres show promising applications to adsorption of heavy metal ions.
Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Adsorbents. 2127-03-9 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2S2, SDS of cas: 2127-03-9.