1. Department of Fibre and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, Stockholm 100 44, Sweden
2. Department of Applied Physics, KTH Royal Institute of Technology, Stockholm 114 19, Sweden
3. Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Alessandria Campus, Viale Teresa Michel 5, 15121 Alessandria, Italy
4. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
5. Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden