[1] Univ Strasbourg 1, Associe CNRS, Ecole Chim Polymeres Mat ECPM, Lab Chim Mol, F-67008 Strasbourg, France
[2] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, Dept Quim Organ, E-50009 Zaragoza, Spain
[3] Natl Taiwan Univ, Grad Inst Electroopt Engn, Taipei 10764, Taiwan
[4] Nihon Univ, Coll Sci & Technol, Dept Mat & Appl Chem, Chiyoda Ku, Tokyo 1018308, Japan