1. Institute of Polymer Materials, University Erlangen-Nürnberg, Martensstr. 7,
D-91058 Erlangen, Germany
2. Bio- and Soft Matter, Institute
of Condensed Matter and Nanosciences,Université catholique de Louvain, Croix du Sud, 1, B-1348 Louvain-la-Neuve,
Belgium
3. School of Chemical
Engineering, Chonbuk National University, Baekjero 567, Deokjin-gu,
Jeonju, 561-756, Jeonbuk, Korea