Aqueous and Template-Free Synthesis of Meso-Macroporous Polymers for Highly Selective Capture and Conversion of Carbon Dioxide

作者：Huang, Kuan; Liu, Fujian^*; Jiang, Lilong^*; Dai, Sheng

来源：Chemsuschem, 2017, 10(21): 4144-4149.

DOI：10.1002/cssc.201701666

• carbon dioxide capture
• carbon dioxide conversion
• meso-macropores
• nitrogen functionality
• porous organic polymers

Meso-macroporous polymers possessing nitrogen functionality were innovatively synthesized through an aqueous and template-free route herein. Specifically, the polymerization of 1-(4-vinylbenzyl)-1,3,5,7-tetraazaadamantan-1-ium chloride in aqueous solution under high temperatures induces the decomposition of the hexamethylenetetramine unit into ammonia and formaldehyde molecules, followed by the cross-linking of benzene rings through "resol chemistry". During this process, extended meso-macroporous frameworks were constructed, and active nitrogen species were incorporated. Taking the advantage of the meso-macroporosity and nitrogen functionality, the synthesized polymers offer competitive CO2 capacities (0.37-1.58 mmolg(-1) at 0 degrees C and 0.15 bar) and outstanding CO2/N-2 selectivities (155-324 at 0 degrees C). Furthermore, after complexed with metal ions, the synthesized polymers show excellent activity for catalyzing the cycloaddition of propylene oxide with CO2 (yield > 98.5%, turnover frequency: 612.9-761.1 h(-1)).

• 出版日期2017-11-9
• 单位南昌大学; 福州大学