1. Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
2. School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Penang 14300, Malaysia
3. Key Laboratory of Polymeric Composite and Functional Materials, School of Materials Science and Engineering, Sun Yat-sen Uniersity, Guangzhou 510275, China