1. Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610064, China
2. School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China