1. Department of Applied Chemistry and Organic and Natural Compounds Engineering, Politehnica, University Timisoara, Carol Telbisz 6, 300001 Timisoara, Romania
2. “C. D. Nenitescu” Institute of Organic and Supramolecular Chemistry, Romanian Academy, Spl. Independentei 202B, 060023 Bucharest, Romania
3. “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda 41A, 700487 Iasi, Romania