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ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
Membrane Journal Vol.23 No.1 pp.80-91

Fe(II) clathrochelate을 이용한 유⋅무기 PES 복합막의 제조

정 보 람*, 손 예 지, 이 용 택**, 김 노 원
*동의대학교 산업기술개발연구소, **경희대학교 환경⋅응용화학대학, 동의대학교 환경공학과

Preparation of Organic-inorganic Hybrid PES Membranes using Fe(II) Clathrochelate

Nowon Kim, Bo Ram Jung*, Yeji Son, Yong Taek Lee**
Department of Environmental Engineering, Dongeui University, Busan 614-714, Korea
*Institute of Industrial Technology, Dongeui University, Busan 614-714, Korea
**College of Environment and Applied Chemistry, KyungHee University, Yongin, 449-701, Korea
(Received February 17, 2013, Revised February 22, 2013, Accepted February 25, 2013)


Metal-templated condensation of cyclohexanedione dioxime and phenylboronic acid in the presence of Fe(II)sulfate heptahydrate proceeds cleanly in methanol to furnish the Fe(II) clathrochelate. An organic/inorganic hybrid membranescomposed of Fe(II) clathrochelate and polyethersulfone was prepared by using phase inversion method. For membranepreparation, the Fe(II) clathrochelate was highly soluble (3∼5 g/L) in DMF, NMP, and DMAc, which meets the requirementsfor the solubility of metal complexes in polar aprotic solvent used in membrane preparation. It was stable evenin the presence of strong acids, such as trifluorosactic acid (pKa = 0.3). It was characterized by UV-vis spectroscopy, andtheir stability in solution phase studied in the presence of (i) strong acids or (ii) competing chelates. Organic/inorganic hybridmembranes were prepared with polyethersulfone, polyvinylpyrrolidone, p-toluenesulfonic acid, Fe(II) clathrochelate andDMF by using nonsolvent induced phase inversion method. The addition of Fe(II) clathrochelate leads increase of surfacepore density, mean pore size and flux. We can obtain highly asymmetric membranes by addition of Fe(II) clathrochelate.