1. Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, P. R. China
2. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
3. Engineering Research Center of Advanced Wooden Materials (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, P. R. China