1. Department of Chemical Science and Engineering Kobe University 1-1 Rokkodai Nada Kobe 657-8501 Japan
2. Department of Chemical Engineering National Tsing-Hua University 101, Sec. 2, Kuang-Fu Road Hsinchu 30013 Taiwan
3. Research Center for Membrane and Film Technology Kobe University 1-1 Rokkodai Nada Kobe 657-8501 Japan