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Cho, Jaeweon
도시환경 감각연구소/Sense Laboratory
Research Interests
  • Convergence of Science and Arts; Environment Ethics; Meta-modernism in Semantics Engineering

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Characterization of LDPE/polystyrene cation exchange membranes prepared by monomer sorption and UV radiation polymerization

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Title
Characterization of LDPE/polystyrene cation exchange membranes prepared by monomer sorption and UV radiation polymerization
Author
Choi, Yong-JinKang, Moon-SungKim, Sung-HyeCho, JaeweonMoon, Seung-Hyeon
Keywords
low-density polyethylene (LDPE);  polystyrene;  cation exchange membrane;  UV radiation polymerization
Issue Date
2003-09
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MEMBRANE SCIENCE, v.223, no.1-2, pp.201 - 215
Abstract
Low-density polyethylene (LDPE)/polystyrene (PS) cation exchange membranes were prepared using the monomer sorption method and UV radiation polymerization. In the preparation method, reaction behaviors during polymerization and sulfonation were investigated. The prepared membranes were characterized in terms of physical and electrochemical properties, exhibiting reasonable mechanical properties for an ion exchange membrane with weight gain (W-r) of above 0.3. DSC studies and FE-SEM image revealed the formation of a homogeneous membrane. The resulting membrane showed membrane electrical resistance (MER) of below 1.0 Omega cm(2) and ion exchange capacity of 1.8 meq./g dry membrane. Both the current-voltage and the chronopotentiometric curves of the membranes suggest that LDPE/polystyrene membranes can be properly used at a high current density, and that the surface homogeneity of cation exchange sites in the membranes was comparable to that in commercial membranes. (C) 2003 Elsevier B.V. All rights reserved
URI
https://scholarworks.unist.ac.kr/handle/201301/11913
DOI
10.1016/S0376-7388(03)00339-9
ISSN
0376-7388
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