1. a Department of Organic and Polymeric Materials , Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo , 152-8552 , Japan
2. b Central R & D Laboratory, Japan Energy Corporation , 3-17-35 Niizo-minami, Toda, Saitama , 335-8502 , Japan
3. c Sagami Chemical Research Center , 4-4-1 Nishiohnuma, Sagamihara, Kanagawa , 229-0012 , Japan
4. e DANIPPON INK & CHEMICALS, INC. , Saitama Plant, 4472-1, Komuro, Ina-machi, Kitaadachi-gun, Saitama , 362-8577 , Japan
5. d Department of Material Chemistry , Graduate School of Engineering, Kyoto University , Yoshida, Kyoto , 606-8501 , Japan