1. Institute of Polymer Materials Friedrich‐Alexander Universität Erlangen‐Nürnberg Martensstraße 7 D‐91058 Erlangen Germany
2. Department of Chemical and Bioengineering Friedrich‐Alexander‐Universität Erlangen‐Nürnberg Egerlandstraße 3 D‐91058 Erlangen Germany
3. Physics, Department of Natural Sciences and Center for Functional Materials Åbo Akademi University Porthansgatan 3 20500 Turku Finland
4. Center for Functional Materials Laboratory of Paper Coating and Converting Åbo Akademi University Porthansgatan 3 20500 Turku Finland