1. Department of Chemistry, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
2. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
3. Wallenberg Wood Science Center, KTH Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
4. Department of Mechanics, KTH Royal Institute of Technology, Teknikringen 8, SE-100 44 Stockholm, Sweden
5. Deutsches Elektronen-Synchrotron, Notkestraße 85, D-22607 Hamburg, Germany
6. Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Notkestraße 85, D-22607 Hamburg, Germany
7. Department of Molecular Sciences, Swedish University of Agricultural Sciences, BioCentrum, Almas allé 5, SE-756 61 Uppsala, Sweden