1. Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science, University of North Texas, PO Box 305310, Denton, TX 76203-5310, USA,
2. Centro de Fisica Aplicada y Tecnologia Avanzada (CFATA), Universidad Nacional Autonoma de México, Apartado Postal 1–1010, Queretaro, Que. 76000, Mexico
3. Materials Science and Engineering, 492 Rhodes Hall, University of Cincinnati, Cincinnati, OH 45221-0012, USA
4. Departamento de Engenharia de Polimeros, Universidade do Minho, Azurém—4800 Guimarães, Portugal
5. FB6—Physikalische Chemie, Gerhard-Mercator-Universität Duisburg, 47048 Duisburg, Germany
6. Applied Physics, Freudenberg Forschungsdienste KG, 69465 Weinheim, Germany