1. Department of Chemistry and Biochemistry Freie Universität Berlin Takustrasse 3 14195 Berlin Germany
2. Institute of Mechanics Chair of Continuum Mechanics and Constitutive Theory Technische Universität Berlin Einsteinufer 5 10587 Berlin Germany
3. Department of Chemistry Functional Materials Technische Universität Berlin Hardenbergstraße 40 10623 Berlin Germany
4. College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China