1. Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen, China;
2. Polymer Engineering Laboratory, PSG Institute of Technology and Applied Research, Coimbatore, India;
3. Polymer Research Laboratory, Department of Applied Sciences, PSG College of Technology, Coimbatore, India;
4. Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil