1. a Department of Polymer Science & Engineering, Chosun University, Gwang Ju, South Korea
2. b Department of Chemical and Biochemical Engineering, Marine Functional Materials Center (BK21) Chosun University, Gwang Ju, South Korea
3. c Department of Physical Chemistry, University Duisburg-Essen, Essen, Germany
4. d Department of Chemical and Biochemical Engineering, Marine Functional Materials Center (BK21) Chosun University, Gwang Ju, South Korea
5. e Department of Polymer Science & Engineering, Chosun University, Gwang Ju, South Korea
6. f Department of Polymer Science & Engineering, Chosun University, Gwang Ju, South Korea