1. Grupo
de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Apartado 89000, Caracas 1080-A, Venezuela
2. Department
of Chemistry, Tulane University, 6400 Freret St., New Orleans, Louisiana 70118, United States
3. Departament
d́Enginyería Química, Universitat Politécnica de Catanluya, Av. Diagonal 647, Barcelona E-08028, Spain
4. Institute
for Polymer Materials (POLYMAT) and Polymer Science and Technology
Department, Faculty of Chemistry, University of the Basque Country (UPV-EHU), Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
5. IKERBASQUE,
Basque
Foundation for Science, E-48011 Bilbao, Spain