1. Specialized Center of Rubber and Polymer Materials in Agriculture and Industry (RPM) Department of Materials Science Faculty of Science Kasetsart University Chatuchak Bangkok 10900 Thailand
2. Centre for Natural Material Innovation Department of Architecture University of Cambridge Cambridge CB2 1PX UK
3. Office of Research Integration on Target‐Based Natural Rubber National Research Council of Thailand (NRCT) Chatuchak Bangkok 10900 Thailand