1. Tokyo National College of Technology; 1220-2 Kunugida-machi Hachioji, Tokyo Japan
2. SINTEF Material and Chemistry; Forskningsveien 1 0314 Oslo Norway
3. SINTEF Material and Chemistry; Høgskoleringen 5 7465 Trondheim Norway
4. University of Oslo, Chemistry Department; P.O. Box 1048, Blindern 0316 Oslo Norway
5. Materials Science Institute of the University of Valencia; P.O. Box 22085 46071 Valencia Spain