During the last few decades, porous covalent organic polymers(PCOPs) have been intensively investigated because of their exceptionally high BET surface area, feasibility of grafting reactive functional groups at the pore surface and a broad diversity of framework compositions[1]. Due to their low densities and π–π stacked architectures, PCOPs have huge potential in diverse applications, such as selective gas adsorption[2], sensing of metal-ions/molecules[3], drug delivery[4]. Nowadays, carbon dioxide(CO2) discharging from the burning of fossil fuels is thought to be the cause of the global warming. In this regard, capture of the primary green house gas CO2 by means of physical adsorption is very crucial for environmental remediation. Therefore, how to efficiently capture and store CO2 is an indispensable issue for research over the last decades in order to reduce greenhouse gas problems[5]. Currently, many researchers are focused on establishing efficient and low cost porous materials, including activated carbon, metal-organic frameworks and nanoporous polymeric networks. Nanoporous polymeric networks have been studied extensively for gas storage and separation, including covalent organic frameworks(COFs), porous organic frameworks(POFs), porous covalent organic polymers(PCOPs), and others. Herein, we focus on the synthesis of novel disulfide-linked porous covalent organic polymers(PCOPs) containing disulfide linkages(–S–S–) by oxidative coupling under catalyst-free mild conditions. Thiocyanuric acid(TCA) molecule which is consisting of trithiol groups are polymerized in dimethyl sulfoxide(DMSO) to afford swellable disulfide-linked PCOPs. After purification of the resulting PCOP materials, we measured their specific surface area which is 23.4337 m2 g-1. The CO2 gas storage efficiencies of PCOPs for different temperatures and different solvent ratios were also analyzed. Acknowledgements This work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK Grant 112M096, COST TD1004) and Selcuk University Scientific Research Fund (BAP). * Corresponding author: selmanyavuz@selcuk.edu.tr References [1] B.J.Smith,W. R. Dichtel, J.Am.Chem.Soc.,2014,136,8783. [2] J.Yu,P. B. Balbuena, J. Phys. Chem. C, 2013, 117, 3383. [3] K.Sarkar,K.Dhara,M.Nandi,P.Roy,A. Bhaumik,P.Banerjee, Adv.Funct.Mater.,2009,19,223. [4] H.Y.Lian,M.Hu,C.H.Liu,Y.Yamauchi,K.C.-W.Wu,Chem.Commun.,2012,48,5151. [5] D.M.D'Alessandro,B.Smit,J. R. Long,Angew.Chem.,Int.Ed.,2010,49,6058.

Disulfide-linked triazine based porous polymer networks for CO2 capture

251st National Meeting (2016)

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