1. Department of Chemistry, National Research Lab for Polymer Synthesis & Physics, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science & Technology, Pohang 790-784, Republic of Korea, Department of Chemistry, School of Science and Technology, Research Center for Environment Friendly Polymers, Kwansei-Gakuin University, Sanda, Hyogo 669-1337, Japan, and The Procter and Gamble Company, 8611 Beckett...