Polyethyleneimine-Based Cryogels Enabling the Selective and Reversible Adsorption of Chlorine.

• Tác giả: Rainer Haag, Merlin Kleoff, Alejandro Lorente, Fabio Lorenz, Sebastian Riedel, Johanna S Sturm, Patrick Voßnacker, Olaf Wagner
• Ngôn ngữ: eng
• Ký hiệu phân loại: 660.284235 General topics in chemical engineering
• Thông tin xuất bản: Germany : Advanced science (Weinheim, Baden-Wurttemberg, Germany) , 2025
• Bộ sưu tập: NCBI
• ID: 623856

Tóm tắt

Herein hyperbranched polyethyleneimine (hPEI) cryogels are reported for the selective and reversible adsorption of elemental chlorine. The cryogels are prepared in an aqueous solution by crosslinking with glutaraldehyde at subzero temperatures. The final macroporous composites bearing ammonium chloride groups are obtained after freeze-drying. The cryogels CG1[Cl]-CG3[Cl] adsorb chlorine with capacities of 0.22-0.26 g Cl