1. Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
2. Department of Chemistry, Faculty of Liberal Arts and Science, Kasetsart University, Nakhon Pathom 73140, Thailand
3. School of Engineering, Faculty of Technology, University of Sunderland, Sunderland, SR6 0DD, UK