1. Key Laboratory of High Performance Plastics (Jilin University), Ministry of Education, National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer; Jilin University, Qianjin Street 2699; Changchun 130012 People's Republic of China
2. School of Materials Science and Engineering; Changchun University of Technology; Changchun 130012 People's Republic of China
3. Department of Materials Science and Engineering; National University of Singapore; Singapore 117574 Singapore