1. Polymers and Composites Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 519 Zhuangshi Rd., Zhenhai District, Ningbo, Zhejiang Province 315201, P. R. China, Fax: +86‐574‐86685186, http://www.nimte.ac.cn/
2. State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, 100029 Beijing, P. R. China, http://www.cmse.buct.edu.cn
3. Physik‐Department, Lehrstuhl für Funktionelle Materialien, TU München, James‐Franck‐Str. 1, 85748 Garching, Germany
4. Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications & PKU‐HKU Joint Lab on Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
5. Deutsches Elektronen‐Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
6. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
7. Department of Chemistry and Center for Nanointegration Duisburg–Essen (CeNIDE), University of Duisburg–Essen, Campus Essen, 45117 Essen, Germany