1. Department of Macromolecular Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585, Japan
2. Department of Biobased Materials Science, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585, Japan
3. Department of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
4. Photon Factory, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
5. Advanced Materials Division, Bridgestone Corporation, Tokyo 187-8531, Japan
6. Department of Material Chemistry, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan