1. George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
2. Department of Chemistry, The Pennsylvania State University, New Kensington, Pennsylvania 15068, United States
3. William G. Enloe Magnet High School, 128 Clarendon Crescent, Raleigh, North Carolina 27610, United States
4. Fiber and Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695, United States