1. CAS Key Laboratory of Chemistry of Northwestern Plant Resources
2. Key Laboratory for Natural Medicine of Gansu Province
3. Lanzhou Institute of Chemical Physics
4. Chinese Academy of Sciences
5. Lanzhou 730000
6. Center for Degradable and Flame-Retardant Polymeric Materials
7. College of Chemistry
8. State Key Laboratory of Polymer Materials Engineering
9. National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
10. Sichuan University