1. Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
2. Research & Development Center, UNITIKA LTD., 23, Uji-Kozakura, Uji-Shi, Kyoto, 611-0021, Japan
3. RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-51982, Japan
4. Department of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan