1. 2C2T-Centre for Textile Science and Technology, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
2. Leibniz-Institut für Polymerforschung Dresden e.V. (IPF), Hohe Str. 6, 01069 Dresden, Germany
3. INL-International Iberian Nanotechnology Laboratory, Av. Mestre. Jose Veiga, 4715-330 Braga, Portugal
4. CFUM − Center of Physics of the University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
5. Facultad de Física, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile