1. College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China
2. College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, P. R. China
3. State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin 300457, P.R. China