1. Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
2. Department of Physics, Zografou Campus, National Technical University of Athens, 15780 Athens, Greece
3. UK BC Research Centre, School of GeoSciences, University of Edinburgh, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK
4. Department of Chemical Engineering, University of Manchester, Manchester M1 3AL, UK