1. Aalto University, School of Chemical Technology, Department
of Forest Products Technology, P.O. Box 16300, FI-00076 Aalto, Finland
2. VTT Technical Research Centre of Finland, Biologinkuja 7, Espoo, P.O. Box 1000
FI-02044 VTT, Finland
3. Aalto University, School of Chemical Technology, Department
of Biotechnology and Chemical Technology, Polymer Technology Group,
P.O. Box 16100, FI-00076 Aalto, Finland
4. University of Helsinki, Department of Physics, Division of Materials Physics, P.O. Box
64, FI-00014 University of Helsinki, Finland