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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.6.472

Study on Morphology Control of Polymeric Membrane with Clathrochelate Metal Complex  

Kim, Nowon (Department of Environmental Engineering, Dong-Eui University)
Jung, Boram (Institute of Industrial Technology, Dongeui University)
Publication Information
Membrane Journal / v.24, no.6, 2014 , pp. 472-483 More about this Journal
Abstract
This study is preparation of microporous membranes by using macrocyclic metal ion complexes and extended cage complexes. It is a more favorable way to existing methods because polymer and metal ion-ligand complex system provides a fine control over the phase transition behavior. Chemical functionalization of the polar surface can be obtained. Metal-templated condensation of cyclohexanedione dioxime, hydroxyphenylboronic acid in the presence of metal salts proceeds cleanly in methanol to furnish the metal clathrochelate complexes. Organic/inorganic hybrid membranes were prepared with polyethersulfone (PES), polyvinylpyrrolidone (PVP), ethyleneglycol butyl ether (BE), metal clathrochelate s and DMF by using nonsolvent induced phase inversion method. The structure of membranes was characterized with scanning electron microscopy (SEM) and microflow permporometer. The addition of Fe(II) clathrochelate complex with p-hydroxyphenyl group leads to changes of membrane morphology such as narrow mean pore size distribution, increase of surface pore density and decrease of the largest pore size.
Keywords
microfiltration membrane; phase inversion; polyethersulfone; porosity; pore size distribution;
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