1. Applied
Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, Colorado 80305, United States
2. Department
of Physics, University of Notre Dame, Notre Dame, Indiana 46556, United States
3. Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
4. X-Ray
Sciences Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
5. Department
of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
6. Department
of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
7. Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
8. Ralph
E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States