1. National Research Lab for Polymer Synthesis & Physics, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Department of Chemistry, Polymer Research Institute, and Division of Molecular and Life Sciences, and School of Environmental Science & Engineering, Pohang University of Science & Technology, Pohang 790-784, Republic of Korea; Department of Analytical Sciences-Materials Characterization, 1897 Building, Dow Chemical Company, Midland, Michigan 48667; and DND-CAT Synchrotron...