1. School of Materials Science; Japan Advanced Institute of Science and Technology; 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
2. Program in Petrochemistry; Faculty of Science; Chulalongkorn University; Phayathai Rd. Bangkok 10330 Thailand
3. Materials Science and Engineering; Nagoya Institute of Technology; Gokiso-cho Showa-ku Nagoya Aichi 466-8555 Japan
4. Prime Polymer Co., Ltd.; 1-5-2 Higashi-Shimbashi Minato-ku Tokyo 105-7122 Japan