1. Center of Excellence in Natural Rubber Technology (CoE-NR); Faculty of Science and Technology; Prince of Songkla University; Pattani Campus 94000 Thailand
2. University of Lyon, Université Claude Bernard Lyon1, Ingénierie des Matériaux Polymères (IMP), UMR CNRS 5223; 15 Boulevard Latarjet 69622 Villeurbanne France