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Electric-field-directed Bicontinuous Microemulsion Polymerization of Nanoporous Polymeric Membranes
New Phys.: Sae Mulli 2019; 69: 445~450
Published online April 30, 2019;
© 2019 New Physics: Sae Mulli.

Se-Hee LEE1, Ki-Hong KIM1*, Jong-Ki KIM2, Sung-In HEO3, Hyun-Mee LEE3, Sung-Mi HAN4

1College of BioMedical, Optical Convergence Technology Center, Daegu Catholic University, Gyeongsan 38430, Korea
2Department of Biomedical Engineering, School of Medicine, Daegu Catholic University, Daegu 42472, Korea
3Department of Optometry \& Vision Science, Daegu Catholic University , Gyeongsan 38430 Korea
4College of BioMedical, Optical Convergence Technology Center, Daegu Catholic University, Gyeongsan 38430 Korea
Correspondence to:
Received December 12, 2018; Revised February 27, 2019; Accepted January 28, 2019.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Nanoporosity is an advantageous property for the polymeric membrane films in fuel cells, filters, and drug delivery systems, in which interconnected pores within the material facilitate transport of small molecules across the membrane. Here, we examined the effect of a DC electric field on the pore structure and oxygen transport of films formed by bicontinuous microemulsion polymerization (BµEP) of 2-hydroxyethyl methacrylate and methyl methacrylate in water containing a cationic surfactant, and compared with those of samples polymerized without an applied electric field. Membranes polymerized through BµEP under an applied electric field that showed 50-130\% increase in oxygen transmissibility demonstrated more elongated pore channels in 3D nanoscopic image as well as smaller standard deviations in pore size distribution than those of membranes that exhibited a decrease in oxygen transmissibility. The results suggest the potential of this preparative technique for controlling pore connectivity in a nanostructured membrane system.
PACS numbers: 87.14.ep
Keywords: Electric field, Bicontinuous microemulsion polymerization, Nanoporous film, Ionic surfactant, Pore channel, Oxygen permeation

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