2002-, Professor, Nankai University 1997-2002, Senior Research Fellow, Institute of Materials Research and Engineering, Singapore 1996-1997, Research Fellow, Kyoto University, Japan 1995-1996, Research Fellow, Toray Industrial Inc., Japan 1993-1995, Postdoctoral Fellow, Kyoto University, Japan 1993, Ph. D., Philipps University of Marburg, Germany 1988-1990, Visiting Scholar, Max-Planck-Institute for Polymer Research, Germany 1984-1988, Research Associate, Institute of Chemistry, C... more..>>