1. Department of Polymer Chemistry and Technology, Faculty of Chemical Technology, Kaunas University of Technology, Lithuania
2. Department of Chemistry, Faculty of Exact and Natural Sciences, Tbilisi State University, Tbilisi, Georgia
3. Low Dimensional Material Research Centre, Department of Physics, University Malaya, Kuala Lumpur, Malaysia
4. Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia