Robust perfluorinated porous organic networks: Succinct synthetic strategy and application in chlorofluorocarbons adsorption  

作　　者：Yali Luo Zhenzhen Yang Xian Suo Hao Chen Tao Wang Ziqian Wang Yunfei Liu Yinong Lyu llja Popovs Sheng Dai 

机构地区：[1]College of Materials Science and Engineering,Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites,Nanjing Tech University,Nanjing 211816,China [2]Department of Chemistry,The University of Tennessee,Knoxville,TN 37996,USA [3]Chemical Sciences Division,Oak Ridge National Laboratory,Oak Ridge,TN 37831,USA

出　　处：《Nano Research》2021年第9期3282-3287,共6页纳米研究（英文版）

基　　金：supported financially by the Division of Chemical Sciences,Geosciences,and Biosciences,Office of Basic Energy Sciences,US Department of Energy.

摘　　要：Fluorinated porous organic networks(F-PONs)have demonstrated unique properties and applications,but approaches capable of affording F-PONs with high fluorine content and robust nanoporous architecture under metal-free and easy handling conditions are still rarely reported.Herein,using polydivinylbenzene(PDVB)as an easily available precursor,a novel and straightforward approach was developed to afford F-PONs via a dehydrative Friedel-Crafts reaction using perfluorinated benzylic alcohols as the cross-linking agent promoted by Bronsted acid(trifluoromethanesulfonic acid).The afforded material(F-PDVB)featured high fluorine content(22 at.%),large surface area(771 m^(2)·g^(-1)),and good chemical/thermal stability,rendering them as promising candidates for the adsorption of CO_(2),hydrocarbons,fluorocarbons,and chlorofluorocarbons,with weight capacities up to 520 wt.%being achieved.This simple methodology can be extended to fabricate fluorinated hyper-crosslinked polymers(F-HCPs)from rigid aromatic monomers.The progress made in this work will open new opportunities to further expand the involvement of fluorinated materials in large scale applications.

关 键 词：FLUORINATED porous organic networks Friedel-Crafts reaction hyper-crosslinked polymers CHLOROFLUOROCARBONS 

分 类 号：O64[理学—物理化学]