1. Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
2. Packaging and Specialty Plastics, The Dow Chemical Company, Lake Jackson, Texas 77566, United States
3. Core R&D, The Dow Chemical Company, Midland, Michigan 48674, United States
4. Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States