화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.25, No.11, 1063-1069, November, 2017
DOI10.1007/s13233-017-5145-2  Export Citation
Synthesis of polyketone-g-sodium styrene sulfonate cation exchange membrane via irradiation and its desalination properties
In Sik Kim1, Chi Won Hwang1, Young Joong Kim1, Ali Canlier1, 2, Kyung Seok Jeong1, and Taek Sung Hwang1, †
  • 1Department of Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, Daehak-ro 99, Yuseong-gu, Daejeon 34134, Korea
  • 2Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Abdullah Gul University, Kocasinan 38080, Kayseri, Turkey
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Using the radiation grafting technique, polyketone membranes were graft copolymerized with sodium styrene sulfonate (SSS) in the presence of additives such as Mohr’s salt and H2SO4. Fourier-transform infrared (FT-IR) spectroscopy was used to characterize the grafted membranes. Water uptake (WU), ion exchange capacity (IEC) and electrical resistance (ER) of the prepared membranes were measured in order to evaluate their physical properties The prepared membranes were applied to the membrane capacitive deionization (MCDI) process, in which their salt removal rates were evaluated and compared to those of CDI (capacitive deionization) process. The degree of grafting rose from 14.4% to 81.4% as the irradiation dose and the monomer concentration were increased. The water uptake ranged from 7.9% to 34.2%. The ionexchange capacity was observed between 0.43 meq/g and 1.1 meq/g, and the electrical resistance had values ranging from 12.2 Ω·cm2 to 2.1 Ω·cm2. The electrical resistance decreased as the ion-exchange capacity was extended. When the prepared cation exchange membrane was used in the MCDI process, the salt removal rate reached 87.6%, which was much higher than 28.8% of CDI process.
Keywords:cation exchange membrane;MCDI;radiation;graft copolymer;desalination
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