a
Department of Forest Products Technology, School of Chemical Technology, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
E-mail: eero.kontturi@aalto.fi
b
Department of Forest Biomaterials, North Carolina State University, Box 8005, Raleigh, USA
E-mail: ojrojas@nscu.edu
c
Department of Chemistry, School of Chemical Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland