1. Department of Chemistry
2. Faculty of Science
3. King Khalid University
4. Abha 61413
5. Saudi Arabia
6. School of Materials Sciences
7. Indian Association for the Cultivation of Science
8. Kolkata – 700 032
9. India
10. Indian Institute of Technology Hyderabad
11. Sangareddy
12. Department of Polymer Science and Engineering
13. Pusan National University
14. Busan 609-735
15. Republic of Korea