1. Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences; The University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
2. Structural Materials Science Laboratory, RIKEN SPring-8 Center; 1-1-1 Kouto, Sayo-cho, Sayo-gun Hyogo 679-5148 Japan
3. Department of Chemistry and Materials Science, Graduate School of Science and Engineering; Tokyo Institute of Technology; 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan
4. Research Infrastructure Group; RIKEN Harima Institute, SPring-8 Center; 1-1-1 Kouto, Sayo-cho, Sayo-gun Hyogo 679-5148 Japan