[1] Macromolecular Science and Engineering, University of Michigan, Ann Arbor, United States
[2] Nanostructured and Biological Materials Branch, Air Force Research Laboratory, Dayton, United States
[3] Department of Applied Chemistry, Waseda University, Tokyo, Japan
[4] Electronic Materials Research Division, Osaka Municipal Technical Research Institute, Osaka, Japan
[5] Daicel Chemical Industries Ltd., Himeji, Japan