1. Department of Chemistry and Research Institute for Convergence of Basic Science; Hanyang University; Seoul 133-791 Korea
2. R&D Center; Hanwha Chemical; Daejeon Korea
3. Nano Fusion Technology Research Lab, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER); Shinshu University; Nagano 386-8567 Japan