文献类型：期刊文献

英文题名：A Hyper-Cross-Linked Aerogel with Rigid Conjugated Polymers as Building Blocks for Efficient Iodine Capture

作者：Shang, Zhikun[1];Pu, Fangxu[1];Zhang, Xuezheng[1];Jin, Huixian[1];Chen, Shiyong[1];Ding, Yun[1];Hu, Aiguo[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China

年份：2023

卷号：5

期号：5

起止页码：3827

外文期刊名：ACS APPLIED POLYMER MATERIALS

收录：;EI(收录号：20231814046589);WOS:【SCI-EXPANDED(收录号:WOS:000978475500001)】；

基金：? ACKNOWLEDGMENTS The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (22171083, 21674035) and Shanghai Leading Academic Discipline Project (B502) . A.H. thanks the ?Eastern Scholar Professorship? support from Shanghai local government.

语种：英文

外文关键词：hyper-cross-linked aerogel; polymers building blocks; macropores; iodine capture; conjugated polymer

摘要：Porous organic polymers are typically synthesized through coupling reactions between multifunctional monomers. While rich-pore structures can be generated with long building blocks, the synthesis of molecules with functional groups of large spatial separation is challenging. Herein, we report a strategy using conjugated polymers as the long and rigid building blocks. A hyper-cross-linked polymer was synthesized through a click reaction between the internal alkyne units in conjugated polymers and a triazido-compound to give an organogel with a hierarchical porous structure. Benefitting from the rich pi electrons and aromatic structures of the hyper-cross-linked polymer networks, the organic aerogel derived from the rigid conjugated polymer-based organogel exhibits a fast adsorption rate and high adsorption capacity for iodine in both aqueous and gas phases. The capture efficiency of the aerogel for iodine in saturated iodine aqueous solution exceeded 80% within 5 min, and the adsorption equilibrium capacity of 3.28 g g-1 for iodine vapor was achieved within 60 min. In addition, the iodine-loaded aerogel has excellent retention in air and can be recycled after thermal release.