화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO))
권호 22권 1호
발표분야 고분자_포스터
제목 Thermo-responsive Homopolymer having Upper Critical Solution Temperature Property as Draw Solute for Forward Osmosis
초록  We synthesized the zwitterionic homopolymer polysulfobetaine (PBET), which has upper critical solution temperature property, via free radical polymerization in order to examine its suitability as a draw solute for the FO process. The UCST property of the monomer BET were not confirmed, while the UCST of the polymer PBET was observed to be about 41 °C. This result suggests that PBET can be easily recovered from aqueous solutions by cooling them to below the UCST. In an active layer facing feed solution (AL-FS) system containing 20 wt% PBET at a temperature of 50 °C, the water flux and reverse salt flux of PBET were observed to be about 3.22 LMH and 0.36 gMH, respectively. We investigated the suitability of homopolymer having UCST property as draw solute for the FO process for the first time. This study can provide for deep understanding of new method of proceeding draw solute and inspiration for the potential design and synthesis of thermo-responsive organic materials.
저자 주창하, 김태형, 박찬혁, 강효
소속 동아대
키워드 forward osmosis; draw solute; responsive polymer; sulfobetaine; UCST
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