1. Central Research Laboratories, DIC Corporation, 631, Sakado, Sakura, Chiba 285-8668, Japan
2. Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
3. Sakai Plant, DIC Corporation, 3, Takasago 1-chome, Takaishi, Osaka 592-0001, Japan
4. Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan