1. College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
2. State Key Laboratory of Advanced Processing and Recycling of Non‐Ferrous Metals Lanzhou University of Technology Lanzhou Gansu 730050 P. R. China
3. Department of Chemistry Technische Universität Berlin Hardenbergstraße 40 Berlin 10623 Germany
4. Department of Chemistry and Biochemistry Freie Universität Berlin Takustrasse 3 Berlin 14195 Germany