*Shinji Kanehashi¹ (1. Tokyo Univ. Agri. Tech. (Japan))

*Tadahisa Iwata¹ (1. The University of Tokyo (Japan))

*Suwabun Chirachanchai^1,5,Nattawat Yenpech¹, Piyawanee Jariyasakulroj², Wanvimol Pasanphan^3,4 (1. Bioresources Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University (Thailand), 2. Department of Packaging and Materials Technology, Faculty of Agro-Industry, Kasetsart University (Thailand),3.Department of Materials Science, Faculty of Science, Kasetsart University (Thailand),4.Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University (Thailand),5.Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University (Thailand))