1. Laboratory of Petroleum Research
2. LAPET
3. Institute of Chemistry
4. Federal University of Rio Grande do Norte
5. UFRN
6. Department of Chemical and Biological Engineering
7. Colorado State University
8. Fort Collins
9. USA
10. Department of Mechanical Engineering
11. Laboratory of Materials, Macromolecules and Composites
12. Federal University of Technology
13. Apucarana
14. Brazil