1. Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
2. Department of Materials Development, R&D Center, Hankook Tire and Technology Co., Ltd., Daejeon 34127, Republic of Korea
3. Department of Aerospace Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
4. Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States