1. Key
Laboratory of Functional Polymer Materials, Ministry of Education,
Institute of Polymer Chemistry, and Collaborative Innovation Center
of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
2. State
Key Laboratory of Hollow Fiber Membrane Materials and Processes, School
of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300380, P. R. China