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. Department of Macromolecular Science & Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan
4. Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers, University of Mons, 20, Place du Parc, 7000 Mons, Belgium