1. Laboratory for Functional Polymers Swiss Federal Laboratories for Materials Science and Technology Empa Überlandstrasse 129 Dübendorf CH‐8600 Switzerland
2. Institute of Chemical Sciences and Engineering Ecole Polytechnique Federale de Lausanne (EPFL) Station 6 Lausanne CH‐1015 Switzerland
3. Institute of Materials Science and Engineering Ecole Polytechnique Federale de Lausanne (EPFL) Station 6 Lausanne CH‐1015 Switzerland