1. Department of Fibre and Polymer Technology, Royal Institute of Technology, KTH, SE-100 44 , Stockholm , Sweden
2. Department of Fibre and Polymer Technology, Royal Institute of Technology, KTH, SE-100 44, Stockholm, Sweden, Wallenberg Wood Science Center, The Royal Institute of Technology and Chalmers University of Technology, SE-100 44 Stockholm , Sweden
3. Department of Chemical and Biological Engineering, Biopolymer Technology, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, Wallenberg Wood Science Center, The Royal Institute of Technology and Chalmers University of Technology, SE-100 44 Stockholm , Sweden