1. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
2. Department of Mathematics, University of Tennessee, Knoxville, Tennessee 37916, United States
3. Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01002, United States
4. Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
5. Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37916, United States
6. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States