1. Department of Polymer Science and Engineering; University of Massachusetts Amherst; 120 Governors Drive Amherst Massachusetts 01003
2. Department of Chemical and Biological Engineering; Colorado School of Mines; Golden Colorado 80401
3. Department of Physics; University of Massachusetts Amherst; 411 Hasbrouck Laboratory Amherst Massachusetts 01003
4. X-ray Science Division; Argonne National Laboratory; Argonne Illinois 60439