1. Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
2. School of Chemical Engineering & Advanced Institute of Materials ScienceChangchun University of Technology Changchun 130012 P. R. China
3. Institute of Applied Chemistry and EngineeringUniversity of Science and Technology of China Hefei 230026 P. R. China
4. Department of ChemistryChung Yuan Christian University Chung Li Taiwan 32023 P. R. China